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Build Information

Failed to build swift-nio-imap, reference 0.2.0 (0a471f), with Swift 6.1 for Android on 20 Jan 2026 07:49:11 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4606859-0":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/finestructure/spi-images:android-6.1-latest swift build --swift-sdk aarch64-unknown-linux-android24 2>&1

Build Log

 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+List.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+List.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Mailbox.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Mailbox.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Message.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Message.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Partial.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Partial.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Response.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Response.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Search.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Search.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Sequence.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Sequence.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+UID.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+UID.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser.swift:30:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
  28 | import ucrt
  29 | #else
  30 | let badOS = { fatalError("unsupported OS") }()
     |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
     |     `- note: add an explicit type annotation to silence this warning
  31 | #endif
  32 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser.swift:30:5: error: invalid redeclaration of 'badOS'
  28 | import ucrt
  29 | #else
  30 | let badOS = { fatalError("unsupported OS") }()
     |     `- error: invalid redeclaration of 'badOS'
  31 | #endif
  32 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser.swift:2420:13: error: cannot find 'isalpha' in scope
2418 |     func parseStatusAttribute(buffer: inout ParseBuffer, tracker: StackTracker) throws -> MailboxAttribute {
2419 |         let parsed = try PL.parseOneOrMoreCharacters(buffer: &buffer, tracker: tracker) { c -> Bool in
2420 |             isalpha(Int32(c)) != 0
     |             `- error: cannot find 'isalpha' in scope
2421 |         }
2422 |         let string = try ParserLibrary.parseBufferAsUTF8(parsed)
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:28:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 26 | import func Musl.isalpha
 27 | #else
 28 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 29 | #endif
 30 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:28:5: error: invalid redeclaration of 'badOS'
 26 | import func Musl.isalpha
 27 | #else
 28 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 29 | #endif
 30 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:118:20: error: cannot find 'isalnum' in scope
116 |             return true
117 |         default:
118 |             return isalnum(Int32(self)) != 0
    |                    `- error: cannot find 'isalnum' in scope
119 |         }
120 |     }
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:127:9: error: cannot find 'isalnum' in scope
125 |
126 |     var isAlphaNum: Bool {
127 |         isalnum(Int32(self)) != 0
    |         `- error: cannot find 'isalnum' in scope
128 |     }
129 |
[386/555] Compiling NIOIMAPCore GrammarParser+Search.swift
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Entry.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Append.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Entry.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Envelope.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Envelope.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Fetch.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Fetch.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+List.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+List.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Mailbox.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Mailbox.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Message.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Message.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Partial.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Partial.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Response.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Response.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Search.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Search.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Sequence.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Sequence.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+UID.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+UID.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser.swift:30:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
  28 | import ucrt
  29 | #else
  30 | let badOS = { fatalError("unsupported OS") }()
     |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
     |     `- note: add an explicit type annotation to silence this warning
  31 | #endif
  32 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser.swift:30:5: error: invalid redeclaration of 'badOS'
  28 | import ucrt
  29 | #else
  30 | let badOS = { fatalError("unsupported OS") }()
     |     `- error: invalid redeclaration of 'badOS'
  31 | #endif
  32 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser.swift:2420:13: error: cannot find 'isalpha' in scope
2418 |     func parseStatusAttribute(buffer: inout ParseBuffer, tracker: StackTracker) throws -> MailboxAttribute {
2419 |         let parsed = try PL.parseOneOrMoreCharacters(buffer: &buffer, tracker: tracker) { c -> Bool in
2420 |             isalpha(Int32(c)) != 0
     |             `- error: cannot find 'isalpha' in scope
2421 |         }
2422 |         let string = try ParserLibrary.parseBufferAsUTF8(parsed)
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:28:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 26 | import func Musl.isalpha
 27 | #else
 28 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 29 | #endif
 30 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:28:5: error: invalid redeclaration of 'badOS'
 26 | import func Musl.isalpha
 27 | #else
 28 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 29 | #endif
 30 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:118:20: error: cannot find 'isalnum' in scope
116 |             return true
117 |         default:
118 |             return isalnum(Int32(self)) != 0
    |                    `- error: cannot find 'isalnum' in scope
119 |         }
120 |     }
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:127:9: error: cannot find 'isalnum' in scope
125 |
126 |     var isAlphaNum: Bool {
127 |         isalnum(Int32(self)) != 0
    |         `- error: cannot find 'isalnum' in scope
128 |     }
129 |
[387/555] Compiling NIOIMAPCore GrammarParser+Sequence.swift
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Entry.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Append.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Entry.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Envelope.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Envelope.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Fetch.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Fetch.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+List.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+List.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Mailbox.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Mailbox.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Message.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Message.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Partial.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Partial.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Response.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Response.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Search.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Search.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Sequence.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Sequence.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+UID.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+UID.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser.swift:30:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
  28 | import ucrt
  29 | #else
  30 | let badOS = { fatalError("unsupported OS") }()
     |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
     |     `- note: add an explicit type annotation to silence this warning
  31 | #endif
  32 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser.swift:30:5: error: invalid redeclaration of 'badOS'
  28 | import ucrt
  29 | #else
  30 | let badOS = { fatalError("unsupported OS") }()
     |     `- error: invalid redeclaration of 'badOS'
  31 | #endif
  32 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser.swift:2420:13: error: cannot find 'isalpha' in scope
2418 |     func parseStatusAttribute(buffer: inout ParseBuffer, tracker: StackTracker) throws -> MailboxAttribute {
2419 |         let parsed = try PL.parseOneOrMoreCharacters(buffer: &buffer, tracker: tracker) { c -> Bool in
2420 |             isalpha(Int32(c)) != 0
     |             `- error: cannot find 'isalpha' in scope
2421 |         }
2422 |         let string = try ParserLibrary.parseBufferAsUTF8(parsed)
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:28:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 26 | import func Musl.isalpha
 27 | #else
 28 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 29 | #endif
 30 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:28:5: error: invalid redeclaration of 'badOS'
 26 | import func Musl.isalpha
 27 | #else
 28 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 29 | #endif
 30 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:118:20: error: cannot find 'isalnum' in scope
116 |             return true
117 |         default:
118 |             return isalnum(Int32(self)) != 0
    |                    `- error: cannot find 'isalnum' in scope
119 |         }
120 |     }
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:127:9: error: cannot find 'isalnum' in scope
125 |
126 |     var isAlphaNum: Bool {
127 |         isalnum(Int32(self)) != 0
    |         `- error: cannot find 'isalnum' in scope
128 |     }
129 |
[388/555] Compiling NIOIMAPCore GrammarParser+UID.swift
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Entry.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Append.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Entry.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Envelope.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Envelope.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Fetch.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Fetch.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+List.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+List.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Mailbox.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Mailbox.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Message.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Message.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Partial.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Partial.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Response.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Response.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Search.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Search.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Sequence.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Sequence.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+UID.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+UID.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser.swift:30:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
  28 | import ucrt
  29 | #else
  30 | let badOS = { fatalError("unsupported OS") }()
     |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
     |     `- note: add an explicit type annotation to silence this warning
  31 | #endif
  32 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser.swift:30:5: error: invalid redeclaration of 'badOS'
  28 | import ucrt
  29 | #else
  30 | let badOS = { fatalError("unsupported OS") }()
     |     `- error: invalid redeclaration of 'badOS'
  31 | #endif
  32 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser.swift:2420:13: error: cannot find 'isalpha' in scope
2418 |     func parseStatusAttribute(buffer: inout ParseBuffer, tracker: StackTracker) throws -> MailboxAttribute {
2419 |         let parsed = try PL.parseOneOrMoreCharacters(buffer: &buffer, tracker: tracker) { c -> Bool in
2420 |             isalpha(Int32(c)) != 0
     |             `- error: cannot find 'isalpha' in scope
2421 |         }
2422 |         let string = try ParserLibrary.parseBufferAsUTF8(parsed)
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:28:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 26 | import func Musl.isalpha
 27 | #else
 28 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 29 | #endif
 30 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:28:5: error: invalid redeclaration of 'badOS'
 26 | import func Musl.isalpha
 27 | #else
 28 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 29 | #endif
 30 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:118:20: error: cannot find 'isalnum' in scope
116 |             return true
117 |         default:
118 |             return isalnum(Int32(self)) != 0
    |                    `- error: cannot find 'isalnum' in scope
119 |         }
120 |     }
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:127:9: error: cannot find 'isalnum' in scope
125 |
126 |     var isAlphaNum: Bool {
127 |         isalnum(Int32(self)) != 0
    |         `- error: cannot find 'isalnum' in scope
128 |     }
129 |
[389/555] Compiling NIOIMAPCore GrammarParser.swift
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Entry.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Append.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Entry.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Envelope.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Envelope.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Fetch.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Fetch.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+List.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+List.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Mailbox.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Mailbox.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Message.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Message.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Partial.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Partial.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Response.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Response.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Search.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Search.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Sequence.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Sequence.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+UID.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+UID.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser.swift:30:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
  28 | import ucrt
  29 | #else
  30 | let badOS = { fatalError("unsupported OS") }()
     |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
     |     `- note: add an explicit type annotation to silence this warning
  31 | #endif
  32 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser.swift:30:5: error: invalid redeclaration of 'badOS'
  28 | import ucrt
  29 | #else
  30 | let badOS = { fatalError("unsupported OS") }()
     |     `- error: invalid redeclaration of 'badOS'
  31 | #endif
  32 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser.swift:2420:13: error: cannot find 'isalpha' in scope
2418 |     func parseStatusAttribute(buffer: inout ParseBuffer, tracker: StackTracker) throws -> MailboxAttribute {
2419 |         let parsed = try PL.parseOneOrMoreCharacters(buffer: &buffer, tracker: tracker) { c -> Bool in
2420 |             isalpha(Int32(c)) != 0
     |             `- error: cannot find 'isalpha' in scope
2421 |         }
2422 |         let string = try ParserLibrary.parseBufferAsUTF8(parsed)
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:28:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 26 | import func Musl.isalpha
 27 | #else
 28 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 29 | #endif
 30 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:28:5: error: invalid redeclaration of 'badOS'
 26 | import func Musl.isalpha
 27 | #else
 28 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 29 | #endif
 30 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:118:20: error: cannot find 'isalnum' in scope
116 |             return true
117 |         default:
118 |             return isalnum(Int32(self)) != 0
    |                    `- error: cannot find 'isalnum' in scope
119 |         }
120 |     }
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:127:9: error: cannot find 'isalnum' in scope
125 |
126 |     var isAlphaNum: Bool {
127 |         isalnum(Int32(self)) != 0
    |         `- error: cannot find 'isalnum' in scope
128 |     }
129 |
[390/555] Compiling NIOIMAPCore Parser.swift
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Entry.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Append.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Entry.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Envelope.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Envelope.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Fetch.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Fetch.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+List.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+List.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Mailbox.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Mailbox.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Message.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Message.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Partial.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Partial.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Response.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Response.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Search.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Search.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Sequence.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Sequence.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+UID.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+UID.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser.swift:30:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
  28 | import ucrt
  29 | #else
  30 | let badOS = { fatalError("unsupported OS") }()
     |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
     |     `- note: add an explicit type annotation to silence this warning
  31 | #endif
  32 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser.swift:30:5: error: invalid redeclaration of 'badOS'
  28 | import ucrt
  29 | #else
  30 | let badOS = { fatalError("unsupported OS") }()
     |     `- error: invalid redeclaration of 'badOS'
  31 | #endif
  32 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser.swift:2420:13: error: cannot find 'isalpha' in scope
2418 |     func parseStatusAttribute(buffer: inout ParseBuffer, tracker: StackTracker) throws -> MailboxAttribute {
2419 |         let parsed = try PL.parseOneOrMoreCharacters(buffer: &buffer, tracker: tracker) { c -> Bool in
2420 |             isalpha(Int32(c)) != 0
     |             `- error: cannot find 'isalpha' in scope
2421 |         }
2422 |         let string = try ParserLibrary.parseBufferAsUTF8(parsed)
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:28:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 26 | import func Musl.isalpha
 27 | #else
 28 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 29 | #endif
 30 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:28:5: error: invalid redeclaration of 'badOS'
 26 | import func Musl.isalpha
 27 | #else
 28 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 29 | #endif
 30 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:118:20: error: cannot find 'isalnum' in scope
116 |             return true
117 |         default:
118 |             return isalnum(Int32(self)) != 0
    |                    `- error: cannot find 'isalnum' in scope
119 |         }
120 |     }
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:127:9: error: cannot find 'isalnum' in scope
125 |
126 |     var isAlphaNum: Bool {
127 |         isalnum(Int32(self)) != 0
    |         `- error: cannot find 'isalnum' in scope
128 |     }
129 |
[391/555] Compiling NIOIMAPCore ParserLibrary.swift
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Entry.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Append.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Entry.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Envelope.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Envelope.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Fetch.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Fetch.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+List.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+List.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Mailbox.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Mailbox.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Message.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Message.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Partial.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Partial.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Response.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Response.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Search.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Search.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Sequence.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Sequence.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+UID.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+UID.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser.swift:30:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
  28 | import ucrt
  29 | #else
  30 | let badOS = { fatalError("unsupported OS") }()
     |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
     |     `- note: add an explicit type annotation to silence this warning
  31 | #endif
  32 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser.swift:30:5: error: invalid redeclaration of 'badOS'
  28 | import ucrt
  29 | #else
  30 | let badOS = { fatalError("unsupported OS") }()
     |     `- error: invalid redeclaration of 'badOS'
  31 | #endif
  32 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser.swift:2420:13: error: cannot find 'isalpha' in scope
2418 |     func parseStatusAttribute(buffer: inout ParseBuffer, tracker: StackTracker) throws -> MailboxAttribute {
2419 |         let parsed = try PL.parseOneOrMoreCharacters(buffer: &buffer, tracker: tracker) { c -> Bool in
2420 |             isalpha(Int32(c)) != 0
     |             `- error: cannot find 'isalpha' in scope
2421 |         }
2422 |         let string = try ParserLibrary.parseBufferAsUTF8(parsed)
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:28:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 26 | import func Musl.isalpha
 27 | #else
 28 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 29 | #endif
 30 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:28:5: error: invalid redeclaration of 'badOS'
 26 | import func Musl.isalpha
 27 | #else
 28 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 29 | #endif
 30 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:118:20: error: cannot find 'isalnum' in scope
116 |             return true
117 |         default:
118 |             return isalnum(Int32(self)) != 0
    |                    `- error: cannot find 'isalnum' in scope
119 |         }
120 |     }
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:127:9: error: cannot find 'isalnum' in scope
125 |
126 |     var isAlphaNum: Bool {
127 |         isalnum(Int32(self)) != 0
    |         `- error: cannot find 'isalnum' in scope
128 |     }
129 |
[392/555] Compiling NIOIMAPCore ResponseParser.swift
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Entry.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Append.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Entry.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Envelope.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Envelope.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Fetch.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Fetch.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+List.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+List.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Mailbox.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Mailbox.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Message.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Message.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Partial.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Partial.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Response.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Response.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Search.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Search.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Sequence.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Sequence.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+UID.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+UID.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser.swift:30:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
  28 | import ucrt
  29 | #else
  30 | let badOS = { fatalError("unsupported OS") }()
     |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
     |     `- note: add an explicit type annotation to silence this warning
  31 | #endif
  32 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser.swift:30:5: error: invalid redeclaration of 'badOS'
  28 | import ucrt
  29 | #else
  30 | let badOS = { fatalError("unsupported OS") }()
     |     `- error: invalid redeclaration of 'badOS'
  31 | #endif
  32 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser.swift:2420:13: error: cannot find 'isalpha' in scope
2418 |     func parseStatusAttribute(buffer: inout ParseBuffer, tracker: StackTracker) throws -> MailboxAttribute {
2419 |         let parsed = try PL.parseOneOrMoreCharacters(buffer: &buffer, tracker: tracker) { c -> Bool in
2420 |             isalpha(Int32(c)) != 0
     |             `- error: cannot find 'isalpha' in scope
2421 |         }
2422 |         let string = try ParserLibrary.parseBufferAsUTF8(parsed)
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:28:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 26 | import func Musl.isalpha
 27 | #else
 28 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 29 | #endif
 30 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:28:5: error: invalid redeclaration of 'badOS'
 26 | import func Musl.isalpha
 27 | #else
 28 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 29 | #endif
 30 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:118:20: error: cannot find 'isalnum' in scope
116 |             return true
117 |         default:
118 |             return isalnum(Int32(self)) != 0
    |                    `- error: cannot find 'isalnum' in scope
119 |         }
120 |     }
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:127:9: error: cannot find 'isalnum' in scope
125 |
126 |     var isAlphaNum: Bool {
127 |         isalnum(Int32(self)) != 0
    |         `- error: cannot find 'isalnum' in scope
128 |     }
129 |
[393/555] Compiling NIOIMAPCore SynchronizingLiteralParser.swift
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Entry.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Append.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Entry.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Envelope.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Envelope.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Fetch.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Fetch.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+List.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+List.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Mailbox.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Mailbox.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Message.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Message.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Partial.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Partial.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Response.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Response.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Search.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Search.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Sequence.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Sequence.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+UID.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+UID.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser.swift:30:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
  28 | import ucrt
  29 | #else
  30 | let badOS = { fatalError("unsupported OS") }()
     |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
     |     `- note: add an explicit type annotation to silence this warning
  31 | #endif
  32 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser.swift:30:5: error: invalid redeclaration of 'badOS'
  28 | import ucrt
  29 | #else
  30 | let badOS = { fatalError("unsupported OS") }()
     |     `- error: invalid redeclaration of 'badOS'
  31 | #endif
  32 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser.swift:2420:13: error: cannot find 'isalpha' in scope
2418 |     func parseStatusAttribute(buffer: inout ParseBuffer, tracker: StackTracker) throws -> MailboxAttribute {
2419 |         let parsed = try PL.parseOneOrMoreCharacters(buffer: &buffer, tracker: tracker) { c -> Bool in
2420 |             isalpha(Int32(c)) != 0
     |             `- error: cannot find 'isalpha' in scope
2421 |         }
2422 |         let string = try ParserLibrary.parseBufferAsUTF8(parsed)
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:28:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 26 | import func Musl.isalpha
 27 | #else
 28 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 29 | #endif
 30 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:28:5: error: invalid redeclaration of 'badOS'
 26 | import func Musl.isalpha
 27 | #else
 28 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 29 | #endif
 30 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:118:20: error: cannot find 'isalnum' in scope
116 |             return true
117 |         default:
118 |             return isalnum(Int32(self)) != 0
    |                    `- error: cannot find 'isalnum' in scope
119 |         }
120 |     }
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:127:9: error: cannot find 'isalnum' in scope
125 |
126 |     var isAlphaNum: Bool {
127 |         isalnum(Int32(self)) != 0
    |         `- error: cannot find 'isalnum' in scope
128 |     }
129 |
[394/555] Compiling NIOIMAPCore UInt8+ParseTypeMembership.swift
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Entry.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Append.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Entry.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Envelope.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Envelope.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Fetch.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Fetch.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+List.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+List.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Mailbox.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Mailbox.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Message.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Message.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Partial.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Partial.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Response.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Response.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Search.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Search.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Sequence.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Sequence.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+UID.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+UID.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser.swift:30:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
  28 | import ucrt
  29 | #else
  30 | let badOS = { fatalError("unsupported OS") }()
     |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
     |     `- note: add an explicit type annotation to silence this warning
  31 | #endif
  32 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser.swift:30:5: error: invalid redeclaration of 'badOS'
  28 | import ucrt
  29 | #else
  30 | let badOS = { fatalError("unsupported OS") }()
     |     `- error: invalid redeclaration of 'badOS'
  31 | #endif
  32 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser.swift:2420:13: error: cannot find 'isalpha' in scope
2418 |     func parseStatusAttribute(buffer: inout ParseBuffer, tracker: StackTracker) throws -> MailboxAttribute {
2419 |         let parsed = try PL.parseOneOrMoreCharacters(buffer: &buffer, tracker: tracker) { c -> Bool in
2420 |             isalpha(Int32(c)) != 0
     |             `- error: cannot find 'isalpha' in scope
2421 |         }
2422 |         let string = try ParserLibrary.parseBufferAsUTF8(parsed)
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:28:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 26 | import func Musl.isalpha
 27 | #else
 28 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 29 | #endif
 30 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:28:5: error: invalid redeclaration of 'badOS'
 26 | import func Musl.isalpha
 27 | #else
 28 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 29 | #endif
 30 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:118:20: error: cannot find 'isalnum' in scope
116 |             return true
117 |         default:
118 |             return isalnum(Int32(self)) != 0
    |                    `- error: cannot find 'isalnum' in scope
119 |         }
120 |     }
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:127:9: error: cannot find 'isalnum' in scope
125 |
126 |     var isAlphaNum: Bool {
127 |         isalnum(Int32(self)) != 0
    |         `- error: cannot find 'isalnum' in scope
128 |     }
129 |
[395/555] Compiling NIOIMAPCore Pipelining.swift
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Entry.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Append.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Entry.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Envelope.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Envelope.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Fetch.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Fetch.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+List.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+List.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Mailbox.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Mailbox.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Message.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Message.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Partial.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Partial.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Response.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Response.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Search.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Search.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Sequence.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Sequence.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+UID.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+UID.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser.swift:30:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
  28 | import ucrt
  29 | #else
  30 | let badOS = { fatalError("unsupported OS") }()
     |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
     |     `- note: add an explicit type annotation to silence this warning
  31 | #endif
  32 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser.swift:30:5: error: invalid redeclaration of 'badOS'
  28 | import ucrt
  29 | #else
  30 | let badOS = { fatalError("unsupported OS") }()
     |     `- error: invalid redeclaration of 'badOS'
  31 | #endif
  32 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser.swift:2420:13: error: cannot find 'isalpha' in scope
2418 |     func parseStatusAttribute(buffer: inout ParseBuffer, tracker: StackTracker) throws -> MailboxAttribute {
2419 |         let parsed = try PL.parseOneOrMoreCharacters(buffer: &buffer, tracker: tracker) { c -> Bool in
2420 |             isalpha(Int32(c)) != 0
     |             `- error: cannot find 'isalpha' in scope
2421 |         }
2422 |         let string = try ParserLibrary.parseBufferAsUTF8(parsed)
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:28:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 26 | import func Musl.isalpha
 27 | #else
 28 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 29 | #endif
 30 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:28:5: error: invalid redeclaration of 'badOS'
 26 | import func Musl.isalpha
 27 | #else
 28 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 29 | #endif
 30 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:118:20: error: cannot find 'isalnum' in scope
116 |             return true
117 |         default:
118 |             return isalnum(Int32(self)) != 0
    |                    `- error: cannot find 'isalnum' in scope
119 |         }
120 |     }
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:127:9: error: cannot find 'isalnum' in scope
125 |
126 |     var isAlphaNum: Bool {
127 |         isalnum(Int32(self)) != 0
    |         `- error: cannot find 'isalnum' in scope
128 |     }
129 |
[396/555] Compiling NIOIMAPCore PreviewText.swift
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Entry.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Append.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Entry.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Envelope.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Envelope.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Fetch.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Fetch.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+List.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+List.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Mailbox.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Mailbox.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Message.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Message.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Partial.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Partial.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Response.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Response.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Search.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Search.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Sequence.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Sequence.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+UID.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+UID.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser.swift:30:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
  28 | import ucrt
  29 | #else
  30 | let badOS = { fatalError("unsupported OS") }()
     |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
     |     `- note: add an explicit type annotation to silence this warning
  31 | #endif
  32 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser.swift:30:5: error: invalid redeclaration of 'badOS'
  28 | import ucrt
  29 | #else
  30 | let badOS = { fatalError("unsupported OS") }()
     |     `- error: invalid redeclaration of 'badOS'
  31 | #endif
  32 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser.swift:2420:13: error: cannot find 'isalpha' in scope
2418 |     func parseStatusAttribute(buffer: inout ParseBuffer, tracker: StackTracker) throws -> MailboxAttribute {
2419 |         let parsed = try PL.parseOneOrMoreCharacters(buffer: &buffer, tracker: tracker) { c -> Bool in
2420 |             isalpha(Int32(c)) != 0
     |             `- error: cannot find 'isalpha' in scope
2421 |         }
2422 |         let string = try ParserLibrary.parseBufferAsUTF8(parsed)
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:28:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 26 | import func Musl.isalpha
 27 | #else
 28 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 29 | #endif
 30 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:28:5: error: invalid redeclaration of 'badOS'
 26 | import func Musl.isalpha
 27 | #else
 28 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 29 | #endif
 30 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:118:20: error: cannot find 'isalnum' in scope
116 |             return true
117 |         default:
118 |             return isalnum(Int32(self)) != 0
    |                    `- error: cannot find 'isalnum' in scope
119 |         }
120 |     }
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:127:9: error: cannot find 'isalnum' in scope
125 |
126 |     var isAlphaNum: Bool {
127 |         isalnum(Int32(self)) != 0
    |         `- error: cannot find 'isalnum' in scope
128 |     }
129 |
[397/555] Compiling NIOIMAPCore ResponseEncodeBuffer.swift
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Entry.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Append.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Entry.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Envelope.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Envelope.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Fetch.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Fetch.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+List.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+List.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Mailbox.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Mailbox.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Message.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Message.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Partial.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Partial.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Response.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Response.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Search.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Search.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Sequence.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Sequence.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+UID.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+UID.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser.swift:30:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
  28 | import ucrt
  29 | #else
  30 | let badOS = { fatalError("unsupported OS") }()
     |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
     |     `- note: add an explicit type annotation to silence this warning
  31 | #endif
  32 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser.swift:30:5: error: invalid redeclaration of 'badOS'
  28 | import ucrt
  29 | #else
  30 | let badOS = { fatalError("unsupported OS") }()
     |     `- error: invalid redeclaration of 'badOS'
  31 | #endif
  32 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser.swift:2420:13: error: cannot find 'isalpha' in scope
2418 |     func parseStatusAttribute(buffer: inout ParseBuffer, tracker: StackTracker) throws -> MailboxAttribute {
2419 |         let parsed = try PL.parseOneOrMoreCharacters(buffer: &buffer, tracker: tracker) { c -> Bool in
2420 |             isalpha(Int32(c)) != 0
     |             `- error: cannot find 'isalpha' in scope
2421 |         }
2422 |         let string = try ParserLibrary.parseBufferAsUTF8(parsed)
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:28:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 26 | import func Musl.isalpha
 27 | #else
 28 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 29 | #endif
 30 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:28:5: error: invalid redeclaration of 'badOS'
 26 | import func Musl.isalpha
 27 | #else
 28 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 29 | #endif
 30 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:118:20: error: cannot find 'isalnum' in scope
116 |             return true
117 |         default:
118 |             return isalnum(Int32(self)) != 0
    |                    `- error: cannot find 'isalnum' in scope
119 |         }
120 |     }
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:127:9: error: cannot find 'isalnum' in scope
125 |
126 |     var isAlphaNum: Bool {
127 |         isalnum(Int32(self)) != 0
    |         `- error: cannot find 'isalnum' in scope
128 |     }
129 |
[398/555] Compiling NIOIMAPCore ResponseEncodingOptions.swift
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Entry.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Append.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Entry.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Envelope.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Envelope.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Fetch.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Fetch.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+List.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+List.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Mailbox.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Mailbox.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Message.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Message.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Partial.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Partial.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Response.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Response.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Search.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Search.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Sequence.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Sequence.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+UID.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+UID.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser.swift:30:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
  28 | import ucrt
  29 | #else
  30 | let badOS = { fatalError("unsupported OS") }()
     |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
     |     `- note: add an explicit type annotation to silence this warning
  31 | #endif
  32 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser.swift:30:5: error: invalid redeclaration of 'badOS'
  28 | import ucrt
  29 | #else
  30 | let badOS = { fatalError("unsupported OS") }()
     |     `- error: invalid redeclaration of 'badOS'
  31 | #endif
  32 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser.swift:2420:13: error: cannot find 'isalpha' in scope
2418 |     func parseStatusAttribute(buffer: inout ParseBuffer, tracker: StackTracker) throws -> MailboxAttribute {
2419 |         let parsed = try PL.parseOneOrMoreCharacters(buffer: &buffer, tracker: tracker) { c -> Bool in
2420 |             isalpha(Int32(c)) != 0
     |             `- error: cannot find 'isalpha' in scope
2421 |         }
2422 |         let string = try ParserLibrary.parseBufferAsUTF8(parsed)
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:28:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 26 | import func Musl.isalpha
 27 | #else
 28 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 29 | #endif
 30 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:28:5: error: invalid redeclaration of 'badOS'
 26 | import func Musl.isalpha
 27 | #else
 28 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 29 | #endif
 30 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:118:20: error: cannot find 'isalnum' in scope
116 |             return true
117 |         default:
118 |             return isalnum(Int32(self)) != 0
    |                    `- error: cannot find 'isalnum' in scope
119 |         }
120 |     }
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:127:9: error: cannot find 'isalnum' in scope
125 |
126 |     var isAlphaNum: Bool {
127 |         isalnum(Int32(self)) != 0
    |         `- error: cannot find 'isalnum' in scope
128 |     }
129 |
[399/555] Compiling NIOIMAPCore String+ByteBuffer.swift
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Entry.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Append.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Entry.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Envelope.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Envelope.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Fetch.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Fetch.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+List.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+List.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Mailbox.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Mailbox.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Message.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Message.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Partial.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Partial.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Response.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Response.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Search.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Search.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Sequence.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Sequence.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+UID.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+UID.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser.swift:30:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
  28 | import ucrt
  29 | #else
  30 | let badOS = { fatalError("unsupported OS") }()
     |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
     |     `- note: add an explicit type annotation to silence this warning
  31 | #endif
  32 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser.swift:30:5: error: invalid redeclaration of 'badOS'
  28 | import ucrt
  29 | #else
  30 | let badOS = { fatalError("unsupported OS") }()
     |     `- error: invalid redeclaration of 'badOS'
  31 | #endif
  32 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser.swift:2420:13: error: cannot find 'isalpha' in scope
2418 |     func parseStatusAttribute(buffer: inout ParseBuffer, tracker: StackTracker) throws -> MailboxAttribute {
2419 |         let parsed = try PL.parseOneOrMoreCharacters(buffer: &buffer, tracker: tracker) { c -> Bool in
2420 |             isalpha(Int32(c)) != 0
     |             `- error: cannot find 'isalpha' in scope
2421 |         }
2422 |         let string = try ParserLibrary.parseBufferAsUTF8(parsed)
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:28:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 26 | import func Musl.isalpha
 27 | #else
 28 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 29 | #endif
 30 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:28:5: error: invalid redeclaration of 'badOS'
 26 | import func Musl.isalpha
 27 | #else
 28 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 29 | #endif
 30 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:118:20: error: cannot find 'isalnum' in scope
116 |             return true
117 |         default:
118 |             return isalnum(Int32(self)) != 0
    |                    `- error: cannot find 'isalnum' in scope
119 |         }
120 |     }
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:127:9: error: cannot find 'isalnum' in scope
125 |
126 |     var isAlphaNum: Bool {
127 |         isalnum(Int32(self)) != 0
    |         `- error: cannot find 'isalnum' in scope
128 |     }
129 |
[400/555] Compiling NIOIMAPCore _ByteBufferProtocol.swift
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Entry.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Append.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Entry.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Envelope.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Envelope.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Fetch.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Fetch.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+List.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+List.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Mailbox.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Mailbox.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Message.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Message.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Partial.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Partial.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Response.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Response.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Search.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Search.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Sequence.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Sequence.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+UID.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+UID.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser.swift:30:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
  28 | import ucrt
  29 | #else
  30 | let badOS = { fatalError("unsupported OS") }()
     |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
     |     `- note: add an explicit type annotation to silence this warning
  31 | #endif
  32 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser.swift:30:5: error: invalid redeclaration of 'badOS'
  28 | import ucrt
  29 | #else
  30 | let badOS = { fatalError("unsupported OS") }()
     |     `- error: invalid redeclaration of 'badOS'
  31 | #endif
  32 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser.swift:2420:13: error: cannot find 'isalpha' in scope
2418 |     func parseStatusAttribute(buffer: inout ParseBuffer, tracker: StackTracker) throws -> MailboxAttribute {
2419 |         let parsed = try PL.parseOneOrMoreCharacters(buffer: &buffer, tracker: tracker) { c -> Bool in
2420 |             isalpha(Int32(c)) != 0
     |             `- error: cannot find 'isalpha' in scope
2421 |         }
2422 |         let string = try ParserLibrary.parseBufferAsUTF8(parsed)
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:28:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 26 | import func Musl.isalpha
 27 | #else
 28 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 29 | #endif
 30 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:28:5: error: invalid redeclaration of 'badOS'
 26 | import func Musl.isalpha
 27 | #else
 28 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 29 | #endif
 30 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:118:20: error: cannot find 'isalnum' in scope
116 |             return true
117 |         default:
118 |             return isalnum(Int32(self)) != 0
    |                    `- error: cannot find 'isalnum' in scope
119 |         }
120 |     }
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:127:9: error: cannot find 'isalnum' in scope
125 |
126 |     var isAlphaNum: Bool {
127 |         isalnum(Int32(self)) != 0
    |         `- error: cannot find 'isalnum' in scope
128 |     }
129 |
error: emit-module command failed with exit code 1 (use -v to see invocation)
[424/555] Compiling NIOIMAPCore ObjectID.swift
[425/555] Compiling NIOIMAPCore OptionExtension.swift
[426/555] Compiling NIOIMAPCore OptionValueComp.swift
[427/555] Compiling NIOIMAPCore PartialRange.swift
[428/555] Compiling NIOIMAPCore SearchReturnData+Partial.swift
[429/555] Compiling NIOIMAPCore Patterns.swift
[430/555] Compiling NIOIMAPCore QuotaLimit.swift
[431/555] Compiling NIOIMAPCore QuotaResource.swift
[432/555] Compiling NIOIMAPCore QuotaResponse.swift
[433/555] Compiling NIOIMAPCore QuotaRoot.swift
[434/555] Compiling NIOIMAPCore QuotaRootResponse.swift
[435/555] Compiling NIOIMAPCore RelativeIMAPURL.swift
[436/555] Compiling NIOIMAPCore ContinuationRequest.swift
[437/555] Compiling NIOIMAPCore ExtendedSearchResponse.swift
[438/555] Compiling NIOIMAPCore Response.swift
[439/555] Compiling NIOIMAPCore ResponseCodeAppend.swift
[440/555] Compiling NIOIMAPCore ResponseCodeCopy.swift
[441/555] Compiling NIOIMAPCore ResponseData.swift
[442/555] Compiling NIOIMAPCore ResponseFatal.swift
[443/555] Compiling NIOIMAPCore ResponsePayload.swift
[444/555] Compiling NIOIMAPCore ResponseText.swift
[445/555] Compiling NIOIMAPCore ResponseTextCode.swift
[446/555] Compiling NIOIMAPCore TaggedResponse.swift
[447/555] Compiling NIOIMAPCore LanguageLocation.swift
[448/555] Compiling NIOIMAPCore LocationAndExtensions.swift
[449/555] Compiling NIOIMAPCore ParameterPair.swift
[450/555] Compiling NIOIMAPCore Multipart.swift
[451/555] Compiling NIOIMAPCore Singlepart.swift
[452/555] Compiling NIOIMAPCore ByteRange.swift
[453/555] Compiling NIOIMAPCore MessagePathByteRange.swift
[454/555] Compiling NIOIMAPCore Capability.swift
[455/555] Compiling NIOIMAPCore ChangedSinceModifier.swift
[456/555] Compiling NIOIMAPCore Command.swift
[457/555] Compiling NIOIMAPCore CommandStreamPart.swift
[458/555] Compiling NIOIMAPCore CustomCommandPayload.swift
[459/555] Compiling NIOIMAPCore TaggedCommand.swift
[460/555] Compiling NIOIMAPCore ConditionalStore.swift
[461/555] Compiling NIOIMAPCore CreateParameter.swift
[462/555] Compiling NIOIMAPCore IMAPDate.swift
[463/555] Compiling NIOIMAPCore InternalDate.swift
[464/555] Compiling NIOIMAPCore EItem.swift
[465/555] Compiling NIOIMAPCore ExtendedSearchOptions.swift
[466/555] Compiling NIOIMAPCore ExtendedSearchScopeOptions.swift
[467/555] Compiling NIOIMAPCore ExtendedSearchSourceOptions.swift
[468/555] Compiling NIOIMAPCore EmailAddress.swift
[469/555] Compiling NIOIMAPCore EnableData.swift
[470/555] Emitting module NIOIMAPCore
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Append.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Body.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Append.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Commands.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Body.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Date.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Commands.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Entry.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Date.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Envelope.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Entry.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Fetch.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Envelope.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+List.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Fetch.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Mailbox.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+List.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Message.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Mailbox.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Partial.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Message.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Response.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Partial.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Search.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Response.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Sequence.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Search.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+UID.swift:24:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Sequence.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser.swift:30:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
  28 | import ucrt
  29 | #else
  30 | let badOS = { fatalError("unsupported OS") }()
     |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
     |     `- note: add an explicit type annotation to silence this warning
  31 | #endif
  32 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+UID.swift:24:5: error: invalid redeclaration of 'badOS'
 22 | import ucrt
 23 | #else
 24 | let badOS = { fatalError("unsupported OS") }()
    |     `- error: invalid redeclaration of 'badOS'
 25 | #endif
 26 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/UInt8+ParseTypeMembership.swift:28:5: warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
 26 | import func Musl.isalpha
 27 | #else
 28 | let badOS = { fatalError("unsupported OS") }()
    |     |- warning: constant 'badOS' inferred to have type 'Never', which is an enum with no cases
    |     `- note: add an explicit type annotation to silence this warning
 29 | #endif
 30 |
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser.swift:30:5: error: invalid redeclaration of 'badOS'
  28 | import ucrt
  29 | #else
  30 | let badOS = { fatalError("unsupported OS") }()
     |     `- error: invalid redeclaration of 'badOS'
  31 | #endif
  32 |
[471/555] Compiling NIOIMAPCore Base64.swift
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BUILD FAILURE 6.1 android