Swift Package Index

Build Information

Failed to build Song, reference main (191a94), with Swift 6.3 for iOS using Xcode 26.4 on 15 Apr 2026 06:13:43 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme Song-Package -destination generic/platform=iOS

Build Log

========================================
RunAll
========================================
Builder version: 4.70.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/OperatorFoundation/Song.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/OperatorFoundation/Song
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 191a949 Update Package.swift
Cloned https://github.com/OperatorFoundation/Song.git
Revision (git rev-parse @):
191a949639ea29d0cf45ddf8ed4d6a342ab92a0d
SUCCESS checkout https://github.com/OperatorFoundation/Song.git at main
========================================
Build
========================================
Selected platform:         iOS
Swift version:             6.3
Building package at path:  $PWD
https://github.com/OperatorFoundation/Song.git
Command line invocation:
    /Applications/Xcode-26.4.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Fetching from https://github.com/OperatorFoundation/swift-ast
Fetching from https://github.com/OperatorFoundation/Datable
Fetching from https://github.com/OperatorFoundation/Net
Creating working copy of package ‘swift-ast’
Checking out main (d7e0cf0) of package ‘swift-ast’
Creating working copy of package ‘Datable’
Checking out main (1186348) of package ‘Datable’
Creating working copy of package ‘Net’
Checking out main (e49f54a) of package ‘Net’
Resolve Package Graph
Resolved source packages:
  Net: https://github.com/OperatorFoundation/Net @ main (e49f54a)
  Datable: https://github.com/OperatorFoundation/Datable @ main (1186348)
  swift-ast: https://github.com/OperatorFoundation/swift-ast @ main (d7e0cf0)
  Song: /Users/admin/builder/spi-builder-workspace
resolved source packages: Net, Datable, swift-ast, Song
2026-04-15 02:13:24.067 xcodebuild[529:3052] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
  "dependencies" : [
    {
      "identity" : "swift-ast",
      "requirement" : {
        "branch" : [
          "main"
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/OperatorFoundation/swift-ast"
    },
    {
      "identity" : "datable",
      "requirement" : {
        "branch" : [
          "main"
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/OperatorFoundation/Datable"
    },
    {
      "identity" : "net",
      "requirement" : {
        "branch" : [
          "main"
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/OperatorFoundation/Net"
    }
  ],
  "manifest_display_name" : "Song",
  "name" : "Song",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "14.0"
    },
    {
      "name" : "ios",
      "version" : "15.0"
    }
  ],
  "products" : [
    {
      "name" : "Song",
      "targets" : [
        "Song"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "Composition",
      "targets" : [
        "Composition"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "Chorus",
      "targets" : [
        "Chorus"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "Symphony",
      "targets" : [
        "Symphony"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "Package",
      "targets" : [
        "Package"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "Expressible",
      "targets" : [
        "Expressible"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "SongExpressible",
      "targets" : [
        "SongExpressible"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "compose",
      "targets" : [
        "compose"
      ],
      "type" : {
        "executable" : null
      }
    },
    {
      "name" : "choir",
      "targets" : [
        "choir"
      ],
      "type" : {
        "executable" : null
      }
    }
  ],
  "swift_languages_versions" : [
    "5"
  ],
  "targets" : [
    {
      "c99name" : "compose",
      "module_type" : "SwiftTarget",
      "name" : "compose",
      "path" : "Sources/compose",
      "product_dependencies" : [
        "SwiftAST"
      ],
      "product_memberships" : [
        "compose"
      ],
      "sources" : [
        "main.swift"
      ],
      "target_dependencies" : [
        "Composition"
      ],
      "type" : "executable"
    },
    {
      "c99name" : "choir",
      "module_type" : "SwiftTarget",
      "name" : "choir",
      "path" : "Sources/choir",
      "product_dependencies" : [
        "Datable",
        "SwiftAST"
      ],
      "product_memberships" : [
        "choir"
      ],
      "sources" : [
        "main.swift"
      ],
      "target_dependencies" : [
        "Chorus",
        "Package"
      ],
      "type" : "executable"
    },
    {
      "c99name" : "SymphonyTests",
      "module_type" : "SwiftTarget",
      "name" : "SymphonyTests",
      "path" : "Tests/SymphonyTests",
      "product_dependencies" : [
        "Datable"
      ],
      "sources" : [
        "SymphonyTests.swift"
      ],
      "target_dependencies" : [
        "Song",
        "Symphony"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Symphony",
      "module_type" : "SwiftTarget",
      "name" : "Symphony",
      "path" : "Sources/Symphony",
      "product_memberships" : [
        "Symphony"
      ],
      "sources" : [
        "Dictionary.swift",
        "ReadOnlySubkeySequence.swift",
        "Sequence.swift",
        "SubkeySequence.swift",
        "Symphony.swift",
        "Value.swift",
        "ValueDictionary.swift",
        "ValueSequence.swift"
      ],
      "target_dependencies" : [
        "Song"
      ],
      "type" : "library"
    },
    {
      "c99name" : "SongTests",
      "module_type" : "SwiftTarget",
      "name" : "SongTests",
      "path" : "Tests/SongTests",
      "product_dependencies" : [
        "Datable"
      ],
      "sources" : [
        "SongTests.swift"
      ],
      "target_dependencies" : [
        "Song",
        "Composition"
      ],
      "type" : "test"
    },
    {
      "c99name" : "SongExpressible",
      "module_type" : "SwiftTarget",
      "name" : "SongExpressible",
      "path" : "Sources/SongExpressible",
      "product_memberships" : [
        "SongExpressible"
      ],
      "sources" : [
        "SongExpressible.swift"
      ],
      "target_dependencies" : [
        "Song",
        "Expressible"
      ],
      "type" : "library"
    },
    {
      "c99name" : "Song",
      "module_type" : "SwiftTarget",
      "name" : "Song",
      "path" : "Sources/Song",
      "product_dependencies" : [
        "SwiftAST",
        "Datable"
      ],
      "product_memberships" : [
        "Song",
        "Symphony",
        "SongExpressible"
      ],
      "sources" : [
        "Decoding/SongDecoder.swift",
        "Decoding/SongKeyedDecodingContainer.swift",
        "Decoding/SongSingleValueDecodingContainer.swift",
        "Decoding/SongUnkeyedDecodingContainer.swift",
        "Encoding/SongEncoder.swift",
        "Encoding/SongKeyedEncodingContainer.swift",
        "Encoding/SongSingleValueEncodingContainer.swift",
        "Encoding/SongUnkeyedEncodingContainer.swift"
      ],
      "target_dependencies" : [
        "Expressible"
      ],
      "type" : "library"
    },
    {
      "c99name" : "Package",
      "module_type" : "SwiftTarget",
      "name" : "Package",
      "path" : "Sources/Package",
      "product_memberships" : [
        "Package",
        "choir"
      ],
      "sources" : [
        "Package.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "ExpressibleTests",
      "module_type" : "SwiftTarget",
      "name" : "ExpressibleTests",
      "path" : "Tests/ExpressibleTests",
      "product_dependencies" : [
        "Net"
      ],
      "sources" : [
        "ExpressibleTests.swift"
      ],
      "target_dependencies" : [
        "Song",
        "Expressible",
        "SongExpressible"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Expressible",
      "module_type" : "SwiftTarget",
      "name" : "Expressible",
      "path" : "Sources/Expressible",
      "product_dependencies" : [
        "Net",
        "SwiftAST"
      ],
      "product_memberships" : [
        "Song",
        "Symphony",
        "Expressible",
        "SongExpressible"
      ],
      "sources" : [
        "Expressible.swift",
        "IPv4Address+Expressible.swift",
        "NWInterface_InterfaceType+Expressible.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "Composition",
      "module_type" : "SwiftTarget",
      "name" : "Composition",
      "path" : "Sources/Composition",
      "product_dependencies" : [
        "Datable",
        "Net"
      ],
      "product_memberships" : [
        "Composition",
        "compose"
      ],
      "sources" : [
        "Composition.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "Chorus",
      "module_type" : "SwiftTarget",
      "name" : "Chorus",
      "path" : "Sources/Chorus",
      "product_memberships" : [
        "Chorus",
        "choir"
      ],
      "sources" : [
        "Chorus.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.9"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "choir",
      "Chorus",
      "compose",
      "Composition",
      "Expressible",
      "Package",
      "Song",
      "Song-Package",
      "SongExpressible",
      "Symphony"
    ]
  }
}
2026-04-15 02:13:32.426 xcodebuild[727:4223] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme Song-Package -destination generic/platform=iOS
Command line invocation:
    /Applications/Xcode-26.4.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath /Users/admin/builder/spi-builder-workspace/.derivedData build -scheme Song-Package -destination generic/platform=iOS
Resolve Package Graph
Resolve Package Graph
Resolved source packages:
  Datable: https://github.com/OperatorFoundation/Datable @ main (1186348)
  swift-ast: https://github.com/OperatorFoundation/swift-ast @ main (d7e0cf0)
  Song: /Users/admin/builder/spi-builder-workspace
  Net: https://github.com/OperatorFoundation/Net @ main (e49f54a)
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (28 targets)
    Target 'compose' in project 'Song'
        ➜ Explicit dependency on target 'Composition' in project 'Song'
        ➜ Explicit dependency on target 'Datable' in project 'Datable'
        ➜ Explicit dependency on target 'Net' in project 'Net'
        ➜ Explicit dependency on target 'SwiftAST' in project 'swift-ast'
    Target 'choir' in project 'Song'
        ➜ Explicit dependency on target 'Chorus' in project 'Song'
        ➜ Explicit dependency on target 'Package' in project 'Song'
        ➜ Explicit dependency on target 'Datable' in project 'Datable'
        ➜ Explicit dependency on target 'SwiftAST' in project 'swift-ast'
    Target 'Symphony' in project 'Song'
        ➜ Explicit dependency on target 'Symphony' in project 'Song'
        ➜ Explicit dependency on target 'Expressible' in project 'Song'
        ➜ Explicit dependency on target 'Song' in project 'Song'
        ➜ Explicit dependency on target 'Net' in project 'Net'
        ➜ Explicit dependency on target 'SwiftAST' in project 'swift-ast'
        ➜ Explicit dependency on target 'Datable' in project 'Datable'
    Target 'Symphony' in project 'Song'
        ➜ Explicit dependency on target 'Expressible' in project 'Song'
        ➜ Explicit dependency on target 'Song' in project 'Song'
        ➜ Explicit dependency on target 'Net' in project 'Net'
        ➜ Explicit dependency on target 'SwiftAST' in project 'swift-ast'
        ➜ Explicit dependency on target 'Datable' in project 'Datable'
    Target 'SongExpressible' in project 'Song'
        ➜ Explicit dependency on target 'SongExpressible' in project 'Song'
        ➜ Explicit dependency on target 'Expressible' in project 'Song'
        ➜ Explicit dependency on target 'Song' in project 'Song'
        ➜ Explicit dependency on target 'Net' in project 'Net'
        ➜ Explicit dependency on target 'SwiftAST' in project 'swift-ast'
        ➜ Explicit dependency on target 'Datable' in project 'Datable'
    Target 'SongExpressible' in project 'Song'
        ➜ Explicit dependency on target 'Expressible' in project 'Song'
        ➜ Explicit dependency on target 'Song' in project 'Song'
        ➜ Explicit dependency on target 'Net' in project 'Net'
        ➜ Explicit dependency on target 'SwiftAST' in project 'swift-ast'
        ➜ Explicit dependency on target 'Datable' in project 'Datable'
    Target 'Song' in project 'Song'
        ➜ Explicit dependency on target 'Song' in project 'Song'
        ➜ Explicit dependency on target 'Expressible' in project 'Song'
        ➜ Explicit dependency on target 'Net' in project 'Net'
        ➜ Explicit dependency on target 'SwiftAST' in project 'swift-ast'
        ➜ Explicit dependency on target 'Datable' in project 'Datable'
    Target 'Song' in project 'Song'
        ➜ Explicit dependency on target 'Expressible' in project 'Song'
        ➜ Explicit dependency on target 'Net' in project 'Net'
        ➜ Explicit dependency on target 'SwiftAST' in project 'swift-ast'
        ➜ Explicit dependency on target 'Datable' in project 'Datable'
    Target 'Package' in project 'Song'
        ➜ Explicit dependency on target 'Package' in project 'Song'
    Target 'Package' in project 'Song' (no dependencies)
    Target 'Expressible' in project 'Song'
        ➜ Explicit dependency on target 'Expressible' in project 'Song'
        ➜ Explicit dependency on target 'Net' in project 'Net'
        ➜ Explicit dependency on target 'SwiftAST' in project 'swift-ast'
    Target 'Expressible' in project 'Song'
        ➜ Explicit dependency on target 'Net' in project 'Net'
        ➜ Explicit dependency on target 'SwiftAST' in project 'swift-ast'
    Target 'SwiftAST' in project 'swift-ast'
        ➜ Explicit dependency on target 'Bocho' in project 'swift-ast'
        ➜ Explicit dependency on target 'Source' in project 'swift-ast'
        ➜ Explicit dependency on target 'Diagnostic' in project 'swift-ast'
        ➜ Explicit dependency on target 'AST' in project 'swift-ast'
        ➜ Explicit dependency on target 'Lexer' in project 'swift-ast'
        ➜ Explicit dependency on target 'Parser' in project 'swift-ast'
        ➜ Explicit dependency on target 'Sema' in project 'swift-ast'
    Target 'Sema' in project 'swift-ast'
        ➜ Explicit dependency on target 'Bocho' in project 'swift-ast'
        ➜ Explicit dependency on target 'Source' in project 'swift-ast'
        ➜ Explicit dependency on target 'Diagnostic' in project 'swift-ast'
        ➜ Explicit dependency on target 'AST' in project 'swift-ast'
    Target 'Parser' in project 'swift-ast'
        ➜ Explicit dependency on target 'Bocho' in project 'swift-ast'
        ➜ Explicit dependency on target 'Source' in project 'swift-ast'
        ➜ Explicit dependency on target 'Diagnostic' in project 'swift-ast'
        ➜ Explicit dependency on target 'AST' in project 'swift-ast'
        ➜ Explicit dependency on target 'Lexer' in project 'swift-ast'
    Target 'Lexer' in project 'swift-ast'
        ➜ Explicit dependency on target 'Bocho' in project 'swift-ast'
        ➜ Explicit dependency on target 'Source' in project 'swift-ast'
        ➜ Explicit dependency on target 'Diagnostic' in project 'swift-ast'
    Target 'AST' in project 'swift-ast'
        ➜ Explicit dependency on target 'Bocho' in project 'swift-ast'
        ➜ Explicit dependency on target 'Source' in project 'swift-ast'
        ➜ Explicit dependency on target 'Diagnostic' in project 'swift-ast'
    Target 'Diagnostic' in project 'swift-ast'
        ➜ Explicit dependency on target 'Bocho' in project 'swift-ast'
        ➜ Explicit dependency on target 'Source' in project 'swift-ast'
    Target 'Source' in project 'swift-ast'
        ➜ Explicit dependency on target 'Bocho' in project 'swift-ast'
    Target 'Bocho' in project 'swift-ast' (no dependencies)
    Target 'Composition' in project 'Song'
        ➜ Explicit dependency on target 'Composition' in project 'Song'
        ➜ Explicit dependency on target 'Datable' in project 'Datable'
        ➜ Explicit dependency on target 'Net' in project 'Net'
    Target 'Composition' in project 'Song'
        ➜ Explicit dependency on target 'Datable' in project 'Datable'
        ➜ Explicit dependency on target 'Net' in project 'Net'
    Target 'Net' in project 'Net'
        ➜ Explicit dependency on target 'Net' in project 'Net'
        ➜ Explicit dependency on target 'Datable' in project 'Datable'
    Target 'Net' in project 'Net'
        ➜ Explicit dependency on target 'Datable' in project 'Datable'
    Target 'Datable' in project 'Datable'
        ➜ Explicit dependency on target 'Datable' in project 'Datable'
    Target 'Datable' in project 'Datable' (no dependencies)
    Target 'Chorus' in project 'Song'
        ➜ Explicit dependency on target 'Chorus' in project 'Song'
    Target 'Chorus' in project 'Song' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ExecuteExternalTool /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc --version
ExecuteExternalTool /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -isysroot /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.4.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
Build description signature: 9069f77898faf08ec7cdcde46910ed7e
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/9069f77898faf08ec7cdcde46910ed7e.xcbuilddata
error: The package product 'Net' requires minimum platform version 16.0 for the iOS platform, but this target supports 15.0 (in target 'Composition' from project 'Song')
error: The package product 'Net' requires minimum platform version 16.0 for the iOS platform, but this target supports 15.0 (in target 'Expressible' from project 'Song')
error: The package product 'Net' requires minimum platform version 16.0 for the iOS platform, but this target supports 15.0 (in target 'Song' from project 'Song')
error: The package product 'Net' requires minimum platform version 16.0 for the iOS platform, but this target supports 15.0 (in target 'SongExpressible' from project 'Song')
error: The package product 'Net' requires minimum platform version 16.0 for the iOS platform, but this target supports 15.0 (in target 'Symphony' from project 'Song')
error: The package product 'Net' requires minimum platform version 16.0 for the iOS platform, but this target supports 15.0 (in target 'compose' from project 'Song')
2026-04-15 02:13:35.560 xcodebuild[734:4294] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
** BUILD FAILED **
The following build commands failed:
	Building workspace spi-builder-workspace with scheme Song-Package
(1 failure)
Command line invocation:
    /Applications/Xcode-26.4.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Resolved source packages:
  swift-ast: https://github.com/OperatorFoundation/swift-ast @ main (d7e0cf0)
  Song: /Users/admin/builder/spi-builder-workspace
  Net: https://github.com/OperatorFoundation/Net @ main (e49f54a)
  Datable: https://github.com/OperatorFoundation/Datable @ main (1186348)
resolved source packages: swift-ast, Song, Net, Datable
2026-04-15 02:13:38.761 xcodebuild[774:4525] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
  "dependencies" : [
    {
      "identity" : "swift-ast",
      "requirement" : {
        "branch" : [
          "main"
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/OperatorFoundation/swift-ast"
    },
    {
      "identity" : "datable",
      "requirement" : {
        "branch" : [
          "main"
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/OperatorFoundation/Datable"
    },
    {
      "identity" : "net",
      "requirement" : {
        "branch" : [
          "main"
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/OperatorFoundation/Net"
    }
  ],
  "manifest_display_name" : "Song",
  "name" : "Song",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "14.0"
    },
    {
      "name" : "ios",
      "version" : "15.0"
    }
  ],
  "products" : [
    {
      "name" : "Song",
      "targets" : [
        "Song"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "Composition",
      "targets" : [
        "Composition"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "Chorus",
      "targets" : [
        "Chorus"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "Symphony",
      "targets" : [
        "Symphony"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "Package",
      "targets" : [
        "Package"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "Expressible",
      "targets" : [
        "Expressible"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "SongExpressible",
      "targets" : [
        "SongExpressible"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "compose",
      "targets" : [
        "compose"
      ],
      "type" : {
        "executable" : null
      }
    },
    {
      "name" : "choir",
      "targets" : [
        "choir"
      ],
      "type" : {
        "executable" : null
      }
    }
  ],
  "swift_languages_versions" : [
    "5"
  ],
  "targets" : [
    {
      "c99name" : "compose",
      "module_type" : "SwiftTarget",
      "name" : "compose",
      "path" : "Sources/compose",
      "product_dependencies" : [
        "SwiftAST"
      ],
      "product_memberships" : [
        "compose"
      ],
      "sources" : [
        "main.swift"
      ],
      "target_dependencies" : [
        "Composition"
      ],
      "type" : "executable"
    },
    {
      "c99name" : "choir",
      "module_type" : "SwiftTarget",
      "name" : "choir",
      "path" : "Sources/choir",
      "product_dependencies" : [
        "Datable",
        "SwiftAST"
      ],
      "product_memberships" : [
        "choir"
      ],
      "sources" : [
        "main.swift"
      ],
      "target_dependencies" : [
        "Chorus",
        "Package"
      ],
      "type" : "executable"
    },
    {
      "c99name" : "SymphonyTests",
      "module_type" : "SwiftTarget",
      "name" : "SymphonyTests",
      "path" : "Tests/SymphonyTests",
      "product_dependencies" : [
        "Datable"
      ],
      "sources" : [
        "SymphonyTests.swift"
      ],
      "target_dependencies" : [
        "Song",
        "Symphony"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Symphony",
      "module_type" : "SwiftTarget",
      "name" : "Symphony",
      "path" : "Sources/Symphony",
      "product_memberships" : [
        "Symphony"
      ],
      "sources" : [
        "Dictionary.swift",
        "ReadOnlySubkeySequence.swift",
        "Sequence.swift",
        "SubkeySequence.swift",
        "Symphony.swift",
        "Value.swift",
        "ValueDictionary.swift",
        "ValueSequence.swift"
      ],
      "target_dependencies" : [
        "Song"
      ],
      "type" : "library"
    },
    {
      "c99name" : "SongTests",
      "module_type" : "SwiftTarget",
      "name" : "SongTests",
      "path" : "Tests/SongTests",
      "product_dependencies" : [
        "Datable"
      ],
      "sources" : [
        "SongTests.swift"
      ],
      "target_dependencies" : [
        "Song",
        "Composition"
      ],
      "type" : "test"
    },
    {
      "c99name" : "SongExpressible",
      "module_type" : "SwiftTarget",
      "name" : "SongExpressible",
      "path" : "Sources/SongExpressible",
      "product_memberships" : [
        "SongExpressible"
      ],
      "sources" : [
        "SongExpressible.swift"
      ],
      "target_dependencies" : [
        "Song",
        "Expressible"
      ],
      "type" : "library"
    },
    {
      "c99name" : "Song",
      "module_type" : "SwiftTarget",
      "name" : "Song",
      "path" : "Sources/Song",
      "product_dependencies" : [
        "SwiftAST",
        "Datable"
      ],
      "product_memberships" : [
        "Song",
        "Symphony",
        "SongExpressible"
      ],
      "sources" : [
        "Decoding/SongDecoder.swift",
        "Decoding/SongKeyedDecodingContainer.swift",
        "Decoding/SongSingleValueDecodingContainer.swift",
        "Decoding/SongUnkeyedDecodingContainer.swift",
        "Encoding/SongEncoder.swift",
        "Encoding/SongKeyedEncodingContainer.swift",
        "Encoding/SongSingleValueEncodingContainer.swift",
        "Encoding/SongUnkeyedEncodingContainer.swift"
      ],
      "target_dependencies" : [
        "Expressible"
      ],
      "type" : "library"
    },
    {
      "c99name" : "Package",
      "module_type" : "SwiftTarget",
      "name" : "Package",
      "path" : "Sources/Package",
      "product_memberships" : [
        "Package",
        "choir"
      ],
      "sources" : [
        "Package.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "ExpressibleTests",
      "module_type" : "SwiftTarget",
      "name" : "ExpressibleTests",
      "path" : "Tests/ExpressibleTests",
      "product_dependencies" : [
        "Net"
      ],
      "sources" : [
        "ExpressibleTests.swift"
      ],
      "target_dependencies" : [
        "Song",
        "Expressible",
        "SongExpressible"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Expressible",
      "module_type" : "SwiftTarget",
      "name" : "Expressible",
      "path" : "Sources/Expressible",
      "product_dependencies" : [
        "Net",
        "SwiftAST"
      ],
      "product_memberships" : [
        "Song",
        "Symphony",
        "Expressible",
        "SongExpressible"
      ],
      "sources" : [
        "Expressible.swift",
        "IPv4Address+Expressible.swift",
        "NWInterface_InterfaceType+Expressible.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "Composition",
      "module_type" : "SwiftTarget",
      "name" : "Composition",
      "path" : "Sources/Composition",
      "product_dependencies" : [
        "Datable",
        "Net"
      ],
      "product_memberships" : [
        "Composition",
        "compose"
      ],
      "sources" : [
        "Composition.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "Chorus",
      "module_type" : "SwiftTarget",
      "name" : "Chorus",
      "path" : "Sources/Chorus",
      "product_memberships" : [
        "Chorus",
        "choir"
      ],
      "sources" : [
        "Chorus.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.9"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "choir",
      "Chorus",
      "compose",
      "Composition",
      "Expressible",
      "Package",
      "Song",
      "Song-Package",
      "SongExpressible",
      "Symphony"
    ]
  }
}
2026-04-15 02:13:40.673 xcodebuild[806:4794] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme Song-Package -destination generic/platform=iOS
Command line invocation:
    /Applications/Xcode-26.4.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath /Users/admin/builder/spi-builder-workspace/.derivedData build -scheme Song-Package -destination generic/platform=iOS
Resolve Package Graph
Resolved source packages:
  swift-ast: https://github.com/OperatorFoundation/swift-ast @ main (d7e0cf0)
  Song: /Users/admin/builder/spi-builder-workspace
  Datable: https://github.com/OperatorFoundation/Datable @ main (1186348)
  Net: https://github.com/OperatorFoundation/Net @ main (e49f54a)
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (28 targets)
    Target 'compose' in project 'Song'
        ➜ Explicit dependency on target 'Composition' in project 'Song'
        ➜ Explicit dependency on target 'Datable' in project 'Datable'
        ➜ Explicit dependency on target 'Net' in project 'Net'
        ➜ Explicit dependency on target 'SwiftAST' in project 'swift-ast'
    Target 'choir' in project 'Song'
        ➜ Explicit dependency on target 'Chorus' in project 'Song'
        ➜ Explicit dependency on target 'Package' in project 'Song'
        ➜ Explicit dependency on target 'Datable' in project 'Datable'
        ➜ Explicit dependency on target 'SwiftAST' in project 'swift-ast'
    Target 'Symphony' in project 'Song'
        ➜ Explicit dependency on target 'Symphony' in project 'Song'
        ➜ Explicit dependency on target 'Expressible' in project 'Song'
        ➜ Explicit dependency on target 'Song' in project 'Song'
        ➜ Explicit dependency on target 'Net' in project 'Net'
        ➜ Explicit dependency on target 'SwiftAST' in project 'swift-ast'
        ➜ Explicit dependency on target 'Datable' in project 'Datable'
    Target 'Symphony' in project 'Song'
        ➜ Explicit dependency on target 'Expressible' in project 'Song'
        ➜ Explicit dependency on target 'Song' in project 'Song'
        ➜ Explicit dependency on target 'Net' in project 'Net'
        ➜ Explicit dependency on target 'SwiftAST' in project 'swift-ast'
        ➜ Explicit dependency on target 'Datable' in project 'Datable'
    Target 'SongExpressible' in project 'Song'
        ➜ Explicit dependency on target 'SongExpressible' in project 'Song'
        ➜ Explicit dependency on target 'Expressible' in project 'Song'
        ➜ Explicit dependency on target 'Song' in project 'Song'
        ➜ Explicit dependency on target 'Net' in project 'Net'
        ➜ Explicit dependency on target 'SwiftAST' in project 'swift-ast'
        ➜ Explicit dependency on target 'Datable' in project 'Datable'
    Target 'SongExpressible' in project 'Song'
        ➜ Explicit dependency on target 'Expressible' in project 'Song'
        ➜ Explicit dependency on target 'Song' in project 'Song'
        ➜ Explicit dependency on target 'Net' in project 'Net'
        ➜ Explicit dependency on target 'SwiftAST' in project 'swift-ast'
        ➜ Explicit dependency on target 'Datable' in project 'Datable'
    Target 'Song' in project 'Song'
        ➜ Explicit dependency on target 'Song' in project 'Song'
        ➜ Explicit dependency on target 'Expressible' in project 'Song'
        ➜ Explicit dependency on target 'Net' in project 'Net'
        ➜ Explicit dependency on target 'SwiftAST' in project 'swift-ast'
        ➜ Explicit dependency on target 'Datable' in project 'Datable'
    Target 'Song' in project 'Song'
        ➜ Explicit dependency on target 'Expressible' in project 'Song'
        ➜ Explicit dependency on target 'Net' in project 'Net'
        ➜ Explicit dependency on target 'SwiftAST' in project 'swift-ast'
        ➜ Explicit dependency on target 'Datable' in project 'Datable'
    Target 'Package' in project 'Song'
        ➜ Explicit dependency on target 'Package' in project 'Song'
    Target 'Package' in project 'Song' (no dependencies)
    Target 'Expressible' in project 'Song'
        ➜ Explicit dependency on target 'Expressible' in project 'Song'
        ➜ Explicit dependency on target 'Net' in project 'Net'
        ➜ Explicit dependency on target 'SwiftAST' in project 'swift-ast'
    Target 'Expressible' in project 'Song'
        ➜ Explicit dependency on target 'Net' in project 'Net'
        ➜ Explicit dependency on target 'SwiftAST' in project 'swift-ast'
    Target 'SwiftAST' in project 'swift-ast'
        ➜ Explicit dependency on target 'Bocho' in project 'swift-ast'
        ➜ Explicit dependency on target 'Source' in project 'swift-ast'
        ➜ Explicit dependency on target 'Diagnostic' in project 'swift-ast'
        ➜ Explicit dependency on target 'AST' in project 'swift-ast'
        ➜ Explicit dependency on target 'Lexer' in project 'swift-ast'
        ➜ Explicit dependency on target 'Parser' in project 'swift-ast'
        ➜ Explicit dependency on target 'Sema' in project 'swift-ast'
    Target 'Sema' in project 'swift-ast'
        ➜ Explicit dependency on target 'Bocho' in project 'swift-ast'
        ➜ Explicit dependency on target 'Source' in project 'swift-ast'
        ➜ Explicit dependency on target 'Diagnostic' in project 'swift-ast'
        ➜ Explicit dependency on target 'AST' in project 'swift-ast'
    Target 'Parser' in project 'swift-ast'
        ➜ Explicit dependency on target 'Bocho' in project 'swift-ast'
        ➜ Explicit dependency on target 'Source' in project 'swift-ast'
        ➜ Explicit dependency on target 'Diagnostic' in project 'swift-ast'
        ➜ Explicit dependency on target 'AST' in project 'swift-ast'
        ➜ Explicit dependency on target 'Lexer' in project 'swift-ast'
    Target 'Lexer' in project 'swift-ast'
        ➜ Explicit dependency on target 'Bocho' in project 'swift-ast'
        ➜ Explicit dependency on target 'Source' in project 'swift-ast'
        ➜ Explicit dependency on target 'Diagnostic' in project 'swift-ast'
    Target 'AST' in project 'swift-ast'
        ➜ Explicit dependency on target 'Bocho' in project 'swift-ast'
        ➜ Explicit dependency on target 'Source' in project 'swift-ast'
        ➜ Explicit dependency on target 'Diagnostic' in project 'swift-ast'
    Target 'Diagnostic' in project 'swift-ast'
        ➜ Explicit dependency on target 'Bocho' in project 'swift-ast'
        ➜ Explicit dependency on target 'Source' in project 'swift-ast'
    Target 'Source' in project 'swift-ast'
        ➜ Explicit dependency on target 'Bocho' in project 'swift-ast'
    Target 'Bocho' in project 'swift-ast' (no dependencies)
    Target 'Composition' in project 'Song'
        ➜ Explicit dependency on target 'Composition' in project 'Song'
        ➜ Explicit dependency on target 'Datable' in project 'Datable'
        ➜ Explicit dependency on target 'Net' in project 'Net'
    Target 'Composition' in project 'Song'
        ➜ Explicit dependency on target 'Datable' in project 'Datable'
        ➜ Explicit dependency on target 'Net' in project 'Net'
    Target 'Net' in project 'Net'
        ➜ Explicit dependency on target 'Net' in project 'Net'
        ➜ Explicit dependency on target 'Datable' in project 'Datable'
    Target 'Net' in project 'Net'
        ➜ Explicit dependency on target 'Datable' in project 'Datable'
    Target 'Datable' in project 'Datable'
        ➜ Explicit dependency on target 'Datable' in project 'Datable'
    Target 'Datable' in project 'Datable' (no dependencies)
    Target 'Chorus' in project 'Song'
        ➜ Explicit dependency on target 'Chorus' in project 'Song'
    Target 'Chorus' in project 'Song' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ExecuteExternalTool /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc --version
ExecuteExternalTool /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -isysroot /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.4.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
Build description signature: 9069f77898faf08ec7cdcde46910ed7e
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/9069f77898faf08ec7cdcde46910ed7e.xcbuilddata
error: The package product 'Net' requires minimum platform version 16.0 for the iOS platform, but this target supports 15.0 (in target 'Symphony' from project 'Song')
error: The package product 'Net' requires minimum platform version 16.0 for the iOS platform, but this target supports 15.0 (in target 'compose' from project 'Song')
error: The package product 'Net' requires minimum platform version 16.0 for the iOS platform, but this target supports 15.0 (in target 'SongExpressible' from project 'Song')
error: The package product 'Net' requires minimum platform version 16.0 for the iOS platform, but this target supports 15.0 (in target 'Song' from project 'Song')
error: The package product 'Net' requires minimum platform version 16.0 for the iOS platform, but this target supports 15.0 (in target 'Composition' from project 'Song')
error: The package product 'Net' requires minimum platform version 16.0 for the iOS platform, but this target supports 15.0 (in target 'Expressible' from project 'Song')
2026-04-15 02:13:42.243 xcodebuild[809:4830] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
** BUILD FAILED **
The following build commands failed:
	Building workspace spi-builder-workspace with scheme Song-Package
(1 failure)
BUILD FAILURE 6.3 iOS