Song – Build Information – Swift Package Index

Build Information

Failed to build Song, reference main (191a94), with Swift 6.4 for macOS (SPM) on 21 Sep 2026 10:40:14 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun swift build --arch arm64

Build Log

========================================
RunAll
========================================
Builder version: 5.1.0
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:         macosSpm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/OperatorFoundation/Song.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun swift build --arch arm64
Building for debugging...
[Computing dependencies]
[Pre-planning 1 / 736]
[Planning deferred tasks]
[125 / 274]
[129 / 278] Chorus
[131 / 282]
[139 / 282] Chorus
[152 / 366] Datable
[157 / 369]
[162 / 369]
[170 / 369]
[175 / 369]
[176 / 369]
[183 / 369]
[187 / 369]
[192 / 369]
[197 / 369]
[200 / 369]
[201 / 369]
[204 / 369]
[206 / 369]
[217 / 369] Datable
[218 / 369] Package
[221 / 369] Package
[238 / 369] Datable
[247 / 369] Source
[254 / 371] Datable
[256 / 371] Source
[267 / 391]
[279 / 392] Source
[285 / 392] Net
[297 / 398] Diagnostic
[307 / 400] Diagnostic
[309 / 400] Composition
[317 / 402] Lexer
[327 / 413] Lexer
[329 / 424] Lexer
[342 / 424] AST
[345 / 424] AST
[347 / 424] Lexer
[355 / 424] Sema
[357 / 426]
[358 / 426] AST
[366 / 440] Parser
[368 / 440] Parser
Fetching https://github.com/OperatorFoundation/swift-ast
[1/6960] Fetching swift-ast
Fetched https://github.com/OperatorFoundation/swift-ast (1.31s)
Fetching https://github.com/OperatorFoundation/Datable
[1/399] Fetching datable
Fetched https://github.com/OperatorFoundation/Datable (0.99s)
Fetching https://github.com/OperatorFoundation/Net
[1/105] Fetching net
Fetched https://github.com/OperatorFoundation/Net (0.86s)
Creating working copy for https://github.com/OperatorFoundation/Net
Working copy of https://github.com/OperatorFoundation/Net resolved at main (e49f54a)
Creating working copy for https://github.com/OperatorFoundation/swift-ast
Working copy of https://github.com/OperatorFoundation/swift-ast resolved at main (d7e0cf0)
Creating working copy for https://github.com/OperatorFoundation/Datable
Working copy of https://github.com/OperatorFoundation/Datable resolved at main (1186348)
error: SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-ast/Sources/Parser/Parser+Pattern.swift failed with a nonzero exit code. Command line:     cd /Users/admin/builder
    builtin-SwiftPerFileCompile Parser+Pattern.swift
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-ast/Sources/Parser/Parser+Expression.swift:40:93: [1;31merror: [1;39m'Expression' is ambiguous for type lookup in this context[0;0m
  [0;36m38 |[0;0m   }
  [0;36m39 |[0;0m
  [0;36m40 |[0;0m   func parseExpression(config: ParserExpressionConfig = ParserExpressionConfig()) throws -> [4;39mExpression[0;0m {
     [0;36m|[0;0m                                                                                             `- [1;31merror: [1;39m'Expression' is ambiguous for type lookup in this context[0;0m
  [0;36m41 |[0;0m     let tryKind = parseTryKind()
  [0;36m42 |[0;0m     let prefixExpr = try parsePrefixExpression(config: config)
Foundation.Expression:2:15: [1;39mnote: [1;39mfound this candidate[0;0m
[0;36m1 |[0;0m @available(macOS 15, iOS 18, tvOS 18, watchOS 11, *)
[0;36m2 |[0;0m public struct Expression<each Input, Output> : Sendable {
  [0;36m|[0;0m               `- [1;39mnote: [1;39mfound this candidate[0;0m
[0;36m3 |[0;0m     public let expression: any StandardPredicateExpression<Output>
[0;36m4 |[0;0m     public let variable: (repeat PredicateExpressions.Variable<each Input>)
AST.Expression:1:17: [1;39mnote: [1;39mfound this candidate[0;0m
[0;36m1 |[0;0m public protocol Expression : AST.Statement {
  [0;36m|[0;0m                 `- [1;39mnote: [1;39mfound this candidate[0;0m
[0;36m2 |[0;0m }
Failed frontend command:
/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift-frontend -frontend -c /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-ast/Sources/Parser/Parser+Attribute.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-ast/Sources/Parser/Parser+Common.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-ast/Sources/Parser/Parser+Declaration.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-ast/Sources/Parser/Parser+Diagnostic.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-ast/Sources/Parser/Parser+Expression.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-ast/Sources/Parser/Parser+Generic.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-ast/Sources/Parser/Parser+Lexing.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-ast/Sources/Parser/Parser+Modifier.swift -primary-file /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-ast/Sources/Parser/Parser+Pattern.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-ast/Sources/Parser/Parser+Statement.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-ast/Sources/Parser/Parser+Type.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-ast/Sources/Parser/Parser+Util.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-ast/Sources/Parser/Parser.swift -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/swift-ast.build/Debug/Parser-t.build/Objects-normal/arm64/Parser+Pattern.d -emit-const-values-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/swift-ast.build/Debug/Parser-t.build/Objects-normal/arm64/Parser+Pattern.swiftconstvalues -emit-reference-dependencies-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/swift-ast.build/Debug/Parser-t.build/Objects-normal/arm64/Parser+Pattern.swiftdeps -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/swift-ast.build/Debug/Parser-t.build/Objects-normal/arm64/Parser+Pattern.dia -target arm64-apple-macos12.0 -disable-cross-import-overlay-search -load-resolved-plugin /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib/swift/host/plugins/libFoundationMacros.dylib\#/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/bin/swift-plugin-server\#FoundationMacros -load-resolved-plugin /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib/swift/host/plugins/libObservationMacros.dylib\#/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/bin/swift-plugin-server\#ObservationMacros -load-resolved-plugin /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib/swift/host/plugins/libSwiftMacros.dylib\#/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/bin/swift-plugin-server\#SwiftMacros -disable-implicit-swift-modules -Xcc -fno-implicit-modules -Xcc -fno-implicit-module-maps -explicit-swift-module-map-file /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/swift-ast.build/Debug/Parser-t.build/Objects-normal/arm64/Parser-dependencies-1.json -Xllvm -aarch64-use-tbi -enable-objc-interop -stack-check -sdk /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX27.0.sdk -I /Users/admin/builder/spi-builder-workspace/.build/out/Products/Debug -Isystem /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.build/out/Products/Debug/PackageFrameworks -F /Users/admin/builder/spi-builder-workspace/.build/out/Products/Debug -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/Frameworks -module-cache-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftExplicitPrecompiledModules -color-diagnostics -Xcc -fcolor-diagnostics -enable-testing -g -debug-info-format\=dwarf -dwarf-version\=4 -suppress-warnings -swift-version 5 -Onone -D SWIFT_PACKAGE -D DEBUG -D SWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -D Xcode -serialize-debugging-options -enable-experimental-feature DebugDescriptionMacro -empty-abi-descriptor -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.build/out/ModuleCache.noindex/Session.modulevalidation -Xcc -working-directory -Xcc /Users/admin/builder -enable-anonymous-context-mangled-names -file-compilation-dir /Users/admin/builder -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.build/out/SDKStatCaches.noindex/macosx27.0-26A425-80c5bbf1d171475443272936d42f90a36a22442a12e9d48fe1a705f55a1adfc4.sdkstatcache -Xcc -fmodules-prune-interval\=86400 -Xcc -fmodules-prune-after\=345600 -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/out/Products/Debug/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/swift-ast.build/Debug/Parser-t.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/swift-ast.build/Debug/Parser-t.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/swift-ast.build/Debug/Parser-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name Parser -const-gather-protocols-file /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/swift-ast.build/Debug/Parser-t.build/Objects-normal/arm64/Parser_const_extract_protocols.json -disable-clang-spi -clang-target arm64-apple-macos27.0 -target-sdk-version 27.0 -target-sdk-name macosx27.0 -in-process-plugin-server-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/libSwiftInProcPluginServer.dylib -parse-as-library -o /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/swift-ast.build/Debug/Parser-t.build/Objects-normal/arm64/Parser+Pattern.o -debug-module-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/swift-ast.build/Debug/Parser-t.build/Objects-normal/arm64/Parser.swiftmodule -index-unit-output-path /swift-ast.build/Debug/Parser-t.build/Objects-normal/arm64/Parser+Pattern.o -index-store-path /Users/admin/builder/spi-builder-workspace/.build/out -index-system-modules
error: Build failed
BUILD FAILURE 6.4 macosSpm