Swift Package IndexBuild Information
Failed to build SwiftCommand, reference 1.4.2 (28efb0), with Swift 6.2 for Wasm on 19 Apr 2026 14:31:56 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-4606859-1":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/swiftpackageindex/spi-images:wasm-6.2-latest swift build --swift-sdk swift-6.2-RELEASE_wasm 2>&1Build Log
========================================
RunAll
========================================
Builder version: 4.70.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/Zollerboy1/SwiftCommand.git
Reference: 1.4.2
Initialized empty Git repository in /host/spi-builder-workspace/.git/
hint: Using 'master' as the name for the initial branch. This default branch name
hint: is subject to change. To configure the initial branch name to use in all
hint: of your new repositories, which will suppress this warning, call:
hint:
hint: git config --global init.defaultBranch <name>
hint:
hint: Names commonly chosen instead of 'master' are 'main', 'trunk' and
hint: 'development'. The just-created branch can be renamed via this command:
hint:
hint: git branch -m <name>
From https://github.com/Zollerboy1/SwiftCommand
* tag 1.4.2 -> FETCH_HEAD
HEAD is now at 28efb03 Update tests to Swift Testing
Cloned https://github.com/Zollerboy1/SwiftCommand.git
Revision (git rev-parse @):
28efb038351a8c45010772b407adb9ea02ba67b5
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/Zollerboy1/SwiftCommand.git at 1.4.2
========================================
Build
========================================
Selected platform: wasm
Swift version: 6.2
Building package at path: $PWD
https://github.com/Zollerboy1/SwiftCommand.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-1":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/swiftpackageindex/spi-images:wasm-6.2-latest swift build --swift-sdk swift-6.2-RELEASE_wasm 2>&1
wasm-6.2-latest: Pulling from swiftpackageindex/spi-images
Digest: sha256:2a8b2d9e022a9894c61e0736af7cdaa1ee64c002dbb133a55c0d7e8980b3ad16
Status: Image is up to date for registry.gitlab.com/swiftpackageindex/spi-images:wasm-6.2-latest
Fetching https://github.com/apple/swift-system
Fetching https://github.com/apple/swift-async-algorithms
[1/6247] Fetching swift-async-algorithms
[376/11848] Fetching swift-async-algorithms, swift-system
Fetched https://github.com/apple/swift-async-algorithms from cache (1.05s)
Fetched https://github.com/apple/swift-system from cache (1.06s)
Computing version for https://github.com/apple/swift-system
Computed https://github.com/apple/swift-system at 1.6.4 (2.05s)
Computing version for https://github.com/apple/swift-async-algorithms
Computed https://github.com/apple/swift-async-algorithms at 1.1.3 (1.25s)
Fetching https://github.com/apple/swift-collections.git
[1/23569] Fetching swift-collections
Fetched https://github.com/apple/swift-collections.git from cache (2.53s)
Computing version for https://github.com/apple/swift-collections.git
Computed https://github.com/apple/swift-collections.git at 1.4.1 (3.84s)
Creating working copy for https://github.com/apple/swift-collections.git
Working copy of https://github.com/apple/swift-collections.git resolved at 1.4.1
Creating working copy for https://github.com/apple/swift-async-algorithms
Working copy of https://github.com/apple/swift-async-algorithms resolved at 1.1.3
Creating working copy for https://github.com/apple/swift-system
Working copy of https://github.com/apple/swift-system resolved at 1.6.4
Building for debugging...
[0/9] Write sources
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[8/9] Write swift-version-24593BA9C3E375BF.txt
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[203/211] Compiling OrderedCollections OrderedSet.swift
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[205/211] Emitting module OrderedCollections
[207/212] Emitting module DequeModule
[214/266] Compiling AsyncAlgorithms AsyncSyncSequence.swift
[215/266] Compiling AsyncAlgorithms AsyncThrottleSequence.swift
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[252/273] Emitting module AsyncAlgorithms
[253/273] Compiling AsyncAlgorithms AsyncFlatMapLatestSequence.swift
[254/273] Compiling AsyncAlgorithms FlatMapLatestStateMachine.swift
[255/273] Compiling AsyncAlgorithms FlatMapLatestStorage.swift
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[271/273] Compiling AsyncAlgorithms MultiProducerSingleConsumerAsyncChannel+Internal.swift
[272/273] Compiling AsyncAlgorithms MultiProducerSingleConsumerAsyncChannel.swift
[273/273] Compiling AsyncAlgorithms RangeReplaceableCollection.swift
[275/287] Compiling SwiftCommand OutputType.swift
error: emit-module command failed with exit code 1 (use -v to see invocation)
[276/288] Emitting module SwiftCommand
/host/spi-builder-workspace/Sources/SwiftCommand/ChildProcess.swift:551:26: error: cannot find type 'Process' in scope
549 |
550 | private let command: GeneratingCommand
551 | private let process: Process
| `- error: cannot find type 'Process' in scope
552 | private let stdinPipe, stdoutPipe, stderrPipe: Pipe?
553 | private let closeStdinImplicitly: Bool
/host/spi-builder-workspace/Sources/SwiftCommand/ChildProcess.swift:557:18: error: cannot find type 'Process' in scope
555 | private init(
556 | command: GeneratingCommand,
557 | process: Process,
| `- error: cannot find type 'Process' in scope
558 | stdinPipe: Pipe?,
559 | stdoutPipe: Pipe?,
[277/288] Compiling SwiftCommand AsyncCharacterSequence.swift
[278/288] Compiling SwiftCommand AsyncLineSequence.swift
[279/288] Compiling SwiftCommand AsyncUnicodeScalarSequence.swift
/host/spi-builder-workspace/Sources/SwiftCommand/ChildProcess.swift:727:20: error: Unsupported platform!
725 | Musl.kill(self.process.processIdentifier, SIGKILL)
726 | #else
727 | #error("Unsupported platform!")
| `- error: Unsupported platform!
728 | #endif
729 | }
/host/spi-builder-workspace/Sources/SwiftCommand/ChildProcess.swift:551:26: error: cannot find type 'Process' in scope
549 |
550 | private let command: GeneratingCommand
551 | private let process: Process
| `- error: cannot find type 'Process' in scope
552 | private let stdinPipe, stdoutPipe, stderrPipe: Pipe?
553 | private let closeStdinImplicitly: Bool
/host/spi-builder-workspace/Sources/SwiftCommand/ChildProcess.swift:557:18: error: cannot find type 'Process' in scope
555 | private init(
556 | command: GeneratingCommand,
557 | process: Process,
| `- error: cannot find type 'Process' in scope
558 | stdinPipe: Pipe?,
559 | stdoutPipe: Pipe?,
/host/spi-builder-workspace/Sources/SwiftCommand/ChildProcess.swift:574:23: error: cannot find 'Process' in scope
572 | withCommand command: GeneratingCommand
573 | ) throws -> ChildProcess<Stdin, Stdout, Stderr> {
574 | let process = Process()
| `- error: cannot find 'Process' in scope
575 |
576 | process.executableURL = command.executablePath.url
[280/288] Compiling SwiftCommand ChildProcess.swift
/host/spi-builder-workspace/Sources/SwiftCommand/ChildProcess.swift:727:20: error: Unsupported platform!
725 | Musl.kill(self.process.processIdentifier, SIGKILL)
726 | #else
727 | #error("Unsupported platform!")
| `- error: Unsupported platform!
728 | #endif
729 | }
/host/spi-builder-workspace/Sources/SwiftCommand/ChildProcess.swift:551:26: error: cannot find type 'Process' in scope
549 |
550 | private let command: GeneratingCommand
551 | private let process: Process
| `- error: cannot find type 'Process' in scope
552 | private let stdinPipe, stdoutPipe, stderrPipe: Pipe?
553 | private let closeStdinImplicitly: Bool
/host/spi-builder-workspace/Sources/SwiftCommand/ChildProcess.swift:557:18: error: cannot find type 'Process' in scope
555 | private init(
556 | command: GeneratingCommand,
557 | process: Process,
| `- error: cannot find type 'Process' in scope
558 | stdinPipe: Pipe?,
559 | stdoutPipe: Pipe?,
/host/spi-builder-workspace/Sources/SwiftCommand/ChildProcess.swift:574:23: error: cannot find 'Process' in scope
572 | withCommand command: GeneratingCommand
573 | ) throws -> ChildProcess<Stdin, Stdout, Stderr> {
574 | let process = Process()
| `- error: cannot find 'Process' in scope
575 |
576 | process.executableURL = command.executablePath.url
[281/288] Compiling SwiftCommand Command.swift
[282/288] Compiling SwiftCommand Either.swift
[283/288] Compiling SwiftCommand ExitStatus.swift
/host/spi-builder-workspace/Sources/SwiftCommand/FileHandle+Async.swift:25:20: error: Unsupported platform!
23 | let read = Musl.read
24 | #else
25 | #error("Unsupported platform!")
| `- error: Unsupported platform!
26 | #endif
27 | let amount = read(fd, buffer.baseAddress, buffer.count)
/host/spi-builder-workspace/Sources/SwiftCommand/FileHandle+Async.swift:27:26: error: use of 'read' refers to instance method rather than global function 'read' in module 'SwiftWASILibc'
25 | #error("Unsupported platform!")
26 | #endif
27 | let amount = read(fd, buffer.baseAddress, buffer.count)
| |- error: use of 'read' refers to instance method rather than global function 'read' in module 'SwiftWASILibc'
| `- note: use 'SwiftWASILibc.' to reference the global function in module 'SwiftWASILibc'
28 | if amount >= 0 {
29 | return amount
/root/.swiftpm/swift-sdks/swift-6.2-RELEASE_wasm.artifactbundle/swift-6.2-RELEASE_wasm/wasm32-unknown-wasip1/WASI.sdk/include/wasm32-wasip1/unistd.h:91:9: note: 'read' declared here
89 | int fdatasync(int);
90 |
91 | ssize_t read(int, void *, size_t);
| `- note: 'read' declared here
92 | ssize_t write(int, const void *, size_t);
93 | ssize_t pread(int, void *, size_t, off_t);
/host/spi-builder-workspace/Sources/SwiftCommand/FileHandle+Async.swift:59:20: error: value of type 'FileHandle' has no member 'readabilityHandler'
57 | ) async throws -> Data? {
58 | try await withUnsafeThrowingContinuation { continuation in
59 | handle.readabilityHandler = { handle in
| `- error: value of type 'FileHandle' has no member 'readabilityHandler'
60 | handle.readabilityHandler = nil
61 |
/host/spi-builder-workspace/Sources/SwiftCommand/FileHandle+Async.swift:59:43: error: cannot infer type of closure parameter 'handle' without a type annotation
57 | ) async throws -> Data? {
58 | try await withUnsafeThrowingContinuation { continuation in
59 | handle.readabilityHandler = { handle in
| `- error: cannot infer type of closure parameter 'handle' without a type annotation
60 | handle.readabilityHandler = nil
61 |
[284/288] Compiling SwiftCommand FileHandle+Async.swift
/host/spi-builder-workspace/Sources/SwiftCommand/FileHandle+Async.swift:25:20: error: Unsupported platform!
23 | let read = Musl.read
24 | #else
25 | #error("Unsupported platform!")
| `- error: Unsupported platform!
26 | #endif
27 | let amount = read(fd, buffer.baseAddress, buffer.count)
/host/spi-builder-workspace/Sources/SwiftCommand/FileHandle+Async.swift:27:26: error: use of 'read' refers to instance method rather than global function 'read' in module 'SwiftWASILibc'
25 | #error("Unsupported platform!")
26 | #endif
27 | let amount = read(fd, buffer.baseAddress, buffer.count)
| |- error: use of 'read' refers to instance method rather than global function 'read' in module 'SwiftWASILibc'
| `- note: use 'SwiftWASILibc.' to reference the global function in module 'SwiftWASILibc'
28 | if amount >= 0 {
29 | return amount
/root/.swiftpm/swift-sdks/swift-6.2-RELEASE_wasm.artifactbundle/swift-6.2-RELEASE_wasm/wasm32-unknown-wasip1/WASI.sdk/include/wasm32-wasip1/unistd.h:91:9: note: 'read' declared here
89 | int fdatasync(int);
90 |
91 | ssize_t read(int, void *, size_t);
| `- note: 'read' declared here
92 | ssize_t write(int, const void *, size_t);
93 | ssize_t pread(int, void *, size_t, off_t);
/host/spi-builder-workspace/Sources/SwiftCommand/FileHandle+Async.swift:59:20: error: value of type 'FileHandle' has no member 'readabilityHandler'
57 | ) async throws -> Data? {
58 | try await withUnsafeThrowingContinuation { continuation in
59 | handle.readabilityHandler = { handle in
| `- error: value of type 'FileHandle' has no member 'readabilityHandler'
60 | handle.readabilityHandler = nil
61 |
/host/spi-builder-workspace/Sources/SwiftCommand/FileHandle+Async.swift:59:43: error: cannot infer type of closure parameter 'handle' without a type annotation
57 | ) async throws -> Data? {
58 | try await withUnsafeThrowingContinuation { continuation in
59 | handle.readabilityHandler = { handle in
| `- error: cannot infer type of closure parameter 'handle' without a type annotation
60 | handle.readabilityHandler = nil
61 |
[285/288] Compiling SwiftCommand FilePath+extension.swift
[286/288] Compiling SwiftCommand InputSource.swift
[287/288] Compiling SwiftCommand ProcessOutput.swift
[288/288] Compiling SwiftCommand OutputDestination.swift
BUILD FAILURE 6.2 wasm