Swift Package Index

Build Information

Failed to build swift-xctesting, reference main (69e2b1), with Swift 6.4 for macOS (SPM) on 20 Sep 2026 21:27:45 UTC.

Build Command

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

Build Log

========================================
RunAll
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Builder version: 5.1.0
Interrupt handler set up.
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Checkout
========================================
Clone URL: https://github.com/noahkamara/swift-xctesting.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/noahkamara/swift-xctesting
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 69e2b1f Update README.md
Cloned https://github.com/noahkamara/swift-xctesting.git
Revision (git rev-parse @):
69e2b1f8de342c150b9939a94b7e2687b2cf502e
SUCCESS checkout https://github.com/noahkamara/swift-xctesting.git at main
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/noahkamara/swift-xctesting.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 / 538]
[Planning deferred tasks]
[101 / 241]
[104 / 242] SwiftSyntax509
[108 / 246] SwiftSyntax509
[115 / 247] TestingInternals
[115 / 247] SwiftSyntax509
[123 / 272]
[126 / 272]
[129 / 272] TestingInternals
[132 / 272]
[143 / 272] SwiftSyntax
[159 / 288] SwiftDiagnostics
[172 / 299] SwiftBasicFormat
[178 / 299] SwiftParser
[179 / 299] SwiftParser
[181 / 299] SwiftParser
[183 / 299] SwiftParser
[191 / 299] SwiftDiagnostics
[194 / 299] SwiftDiagnostics
[198 / 301] SwiftParserDiagnostics
[204 / 323] SwiftParserDiagnostics
[209 / 323] SwiftOperators
[217 / 323] SwiftParserDiagnostics
[224 / 323] SwiftParserDiagnostics
[228 / 323] SwiftSyntaxBuilder
[232 / 323] SwiftOperators
[233 / 324]
[234 / 324] SwiftParser
[235 / 324] SwiftParserDiagnostics
[243 / 356]
[244 / 356]
[246 / 356]
[249 / 356]
[253 / 356]
[255 / 356]
[256 / 356]
[265 / 356] SwiftSyntaxBuilder
[267 / 356] SwiftSyntaxBuilder
[275 / 357] SwiftSyntaxBuilder
[275 / 357] SwiftSyntaxMacros
[282 / 368] SwiftSyntaxMacros
[287 / 368] SwiftSyntaxMacros
[294 / 369] SwiftSyntaxMacroExpansion
[301 / 377] SwiftSyntaxMacroExpansion
[302 / 377] SwiftSyntaxMacroExpansion
[310 / 378] SwiftSyntaxMacroExpansion
[310 / 378] SwiftCompilerPluginMessageHandling
[318 / 385] SwiftCompilerPluginMessageHandling
[325 / 386] SwiftSyntax
[328 / 388] SwiftSyntax
[336 / 388] SwiftSyntax
[341 / 388] SwiftParserDiagnostics
[346 / 388] SwiftCompilerPluginMessageHandling
[363 / 390] XCTestingMacros
[374 / 445]
[380 / 445]
[385 / 445]
[391 / 445]
[394 / 445] XCTestingMacros
[395 / 445]
[399 / 445]
[401 / 445]
[404 / 445]
[408 / 445]
[410 / 445]
[411 / 445]
[423 / 445] TestingMacros
[426 / 445] TestingMacros
[429 / 446] Testing
[439 / 524]
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[507 / 524] Testing
Fetching https://github.com/pointfreeco/swift-macro-testing.git
Fetching https://github.com/apple/swift-syntax.git
Fetching https://github.com/apple/swift-docc-plugin
Fetching https://github.com/apple/swift-testing.git
[1/2345] Fetching swift-docc-plugin
[166/3347] Fetching swift-docc-plugin, swift-macro-testing
Fetched https://github.com/pointfreeco/swift-macro-testing.git (1.16s)
[258/2345] Fetching swift-docc-plugin
[2346/45660] Fetching swift-docc-plugin, swift-testing
[4945/125646] Fetching swift-docc-plugin, swift-testing, swift-syntax
Fetched https://github.com/apple/swift-testing.git (8.01s)
Fetched https://github.com/apple/swift-syntax.git (8.01s)
Fetched https://github.com/apple/swift-docc-plugin (8.01s)
Computing version for https://github.com/apple/swift-syntax.git
Computed https://github.com/apple/swift-syntax.git at 509.1.1 (10.94s)
Computing version for https://github.com/apple/swift-testing.git
Computed https://github.com/apple/swift-testing.git at 0.5.1 (0.59s)
Computing version for https://github.com/apple/swift-docc-plugin
Computed https://github.com/apple/swift-docc-plugin at 1.5.0 (0.66s)
Fetching https://github.com/swiftlang/swift-docc-symbolkit
[1/3824] Fetching swift-docc-symbolkit
Fetched https://github.com/swiftlang/swift-docc-symbolkit (1.38s)
Computing version for https://github.com/swiftlang/swift-docc-symbolkit
Computed https://github.com/swiftlang/swift-docc-symbolkit at 1.0.0 (2.12s)
Computing version for https://github.com/pointfreeco/swift-macro-testing.git
Computed https://github.com/pointfreeco/swift-macro-testing.git at 0.7.0 (0.57s)
Fetching https://github.com/pointfreeco/swift-snapshot-testing
[1/16416] Fetching swift-snapshot-testing
Fetched https://github.com/pointfreeco/swift-snapshot-testing (7.41s)
Computing version for https://github.com/pointfreeco/swift-snapshot-testing
Computed https://github.com/pointfreeco/swift-snapshot-testing at 1.19.5 (8.02s)
Fetching https://github.com/pointfreeco/swift-custom-dump
[1/5666] Fetching swift-custom-dump
Fetched https://github.com/pointfreeco/swift-custom-dump (1.69s)
Computing version for https://github.com/pointfreeco/swift-custom-dump
Computed https://github.com/pointfreeco/swift-custom-dump at 1.7.3 (2.32s)
Fetching https://github.com/pointfreeco/swift-issue-reporting
[1/6136] Fetching swift-issue-reporting
Fetched https://github.com/pointfreeco/swift-issue-reporting (1.83s)
Computing version for https://github.com/pointfreeco/swift-issue-reporting
Computed https://github.com/pointfreeco/swift-issue-reporting at 2.1.0 (4.28s)
Creating working copy for https://github.com/pointfreeco/swift-snapshot-testing
Working copy of https://github.com/pointfreeco/swift-snapshot-testing resolved at 1.19.5
Creating working copy for https://github.com/pointfreeco/swift-macro-testing.git
Working copy of https://github.com/pointfreeco/swift-macro-testing.git resolved at 0.7.0
Creating working copy for https://github.com/pointfreeco/swift-custom-dump
Working copy of https://github.com/pointfreeco/swift-custom-dump resolved at 1.7.3
Creating working copy for https://github.com/swiftlang/swift-docc-symbolkit
Working copy of https://github.com/swiftlang/swift-docc-symbolkit resolved at 1.0.0
Creating working copy for https://github.com/apple/swift-docc-plugin
Working copy of https://github.com/apple/swift-docc-plugin resolved at 1.5.0
Creating working copy for https://github.com/pointfreeco/swift-issue-reporting
Working copy of https://github.com/pointfreeco/swift-issue-reporting resolved at 2.1.0
Creating working copy for https://github.com/apple/swift-syntax.git
Working copy of https://github.com/apple/swift-syntax.git resolved at 509.1.1
Creating working copy for https://github.com/apple/swift-testing.git
Working copy of https://github.com/apple/swift-testing.git resolved at 0.5.1
warning: 'swift-macro-testing': Conflicting identity for swift-syntax: dependency 'github.com/swiftlang/swift-syntax' and dependency 'github.com/apple/swift-syntax' both point to the same package identity 'swift-syntax'. The dependencies are introduced through the following chains: (A) /users/admin/builder/spi-builder-workspace->github.com/pointfreeco/swift-macro-testing->github.com/swiftlang/swift-syntax (B) /users/admin/builder/spi-builder-workspace->github.com/apple/swift-syntax. If there are multiple chains that lead to the same dependency, only the first chain is shown here. To see all chains use debug output option. To resolve the conflict, coordinate with the maintainer of the package that introduces the conflicting dependency. This will be escalated to an error in future versions of SwiftPM.
warning: 'swift-snapshot-testing': Conflicting identity for swift-syntax: dependency 'github.com/swiftlang/swift-syntax' and dependency 'github.com/apple/swift-syntax' both point to the same package identity 'swift-syntax'. The dependencies are introduced through the following chains: (A) /users/admin/builder/spi-builder-workspace->github.com/pointfreeco/swift-macro-testing->github.com/swiftlang/swift-syntax (B) /users/admin/builder/spi-builder-workspace->github.com/apple/swift-syntax. If there are multiple chains that lead to the same dependency, only the first chain is shown here. To see all chains use debug output option. To resolve the conflict, coordinate with the maintainer of the package that introduces the conflicting dependency. This will be escalated to an error in future versions of SwiftPM.
warning: 'swift-macro-testing': Conflicting identity for swift-syntax: dependency 'github.com/swiftlang/swift-syntax' and dependency 'github.com/apple/swift-syntax' both point to the same package identity 'swift-syntax'. The dependencies are introduced through the following chains: (A) /users/admin/builder/spi-builder-workspace->github.com/pointfreeco/swift-macro-testing->github.com/swiftlang/swift-syntax (B) /users/admin/builder/spi-builder-workspace->github.com/apple/swift-syntax. If there are multiple chains that lead to the same dependency, only the first chain is shown here. To see all chains use debug output option. To resolve the conflict, coordinate with the maintainer of the package that introduces the conflicting dependency. This will be escalated to an error in future versions of SwiftPM.
warning: 'swift-snapshot-testing': Conflicting identity for swift-syntax: dependency 'github.com/swiftlang/swift-syntax' and dependency 'github.com/apple/swift-syntax' both point to the same package identity 'swift-syntax'. The dependencies are introduced through the following chains: (A) /users/admin/builder/spi-builder-workspace->github.com/pointfreeco/swift-macro-testing->github.com/swiftlang/swift-syntax (B) /users/admin/builder/spi-builder-workspace->github.com/apple/swift-syntax. If there are multiple chains that lead to the same dependency, only the first chain is shown here. To see all chains use debug output option. To resolve the conflict, coordinate with the maintainer of the package that introduces the conflicting dependency. This will be escalated to an error in future versions of SwiftPM.
error: SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Test.swift failed with a nonzero exit code. Command line:     cd /Users/admin/builder
    builtin-SwiftPerFileCompile Test.swift
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Test.swift:88:17: error: conformance of 'AnySequence<Element>' to 'Sendable' is unavailable
 86 |   @_spi(ExperimentalParameterizedTesting)
 87 |   public var testCases: (some Sequence<Test.Case> & Sendable)? {
 88 |     _testCases?.rawValue
    |                 `- error: conformance of 'AnySequence<Element>' to 'Sendable' is unavailable
 89 |   }
 90 |
Swift.AnySequence:2:11: note: conformance of 'AnySequence<Element>' to 'Sendable' has been explicitly marked unavailable here
1 | @available(*, unavailable)
2 | extension AnySequence : Sendable {
  |           `- note: conformance of 'AnySequence<Element>' to 'Sendable' has been explicitly marked unavailable here
3 | }
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-testing/Sources/Testing/Events/Clock.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Events/Event.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Events/Recorder/Event.ConsoleOutputRecorder.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Events/Recorder/Event.HumanReadableOutputRecorder.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Events/Recorder/Event.JUnitXMLRecorder.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Events/Recorder/Event.Symbol.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Events/TimeValue.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Expectations/Expectation+Macro.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Expectations/Expectation.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Expectations/ExpectationChecking+Macro.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Issues/Confirmation.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Issues/Issue+Recording.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Issues/Issue.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Issues/KnownIssue.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Parameterization/CustomTestArgumentEncodable.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Parameterization/Test.Case.Generator.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Parameterization/Test.Case.ID.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Parameterization/Test.Case.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Parameterization/TypeInfo.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Running/Configuration+EventHandling.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Running/Configuration.TestFilter.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Running/Configuration.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Running/EntryPoint.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Running/Runner.Plan+Dumping.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Running/Runner.Plan.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Running/Runner.RuntimeState.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Running/Runner.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Running/SkipInfo.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Running/XCTestScaffold.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/SourceAttribution/Backtrace.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/SourceAttribution/CustomTestStringConvertible.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/SourceAttribution/Expression+Macro.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/SourceAttribution/Expression.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/SourceAttribution/SourceContext.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/SourceAttribution/SourceLocation.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Support/Additions/ArrayAdditions.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Support/Additions/CollectionDifferenceAdditions.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Support/Additions/CommandLineAdditions.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Support/Additions/NumericAdditions.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Support/Additions/ResultAdditions.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Support/Additions/TypeAdditions.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Support/CError.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Support/CartesianProduct.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Support/Environment.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Support/FileHandle.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Support/Graph.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Support/Locked.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Support/UncheckedSendable.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Support/Versions.swift -primary-file /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Test+Discovery.swift -primary-file /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Test+Macro.swift -primary-file 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/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Traits/HiddenTrait.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Traits/SPIAwareTrait.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Traits/SerialTrait.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Traits/Tag+Macro.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Traits/Tag.Color+Loading.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Traits/Tag.Color.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Traits/Tag.List.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Traits/Tag.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Traits/TimeLimitTrait.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-testing/Sources/Testing/Traits/Trait.swift -supplementary-output-file-map /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/swift-testing.build/Debug/Testing-t.build/Objects-normal/arm64/supplementaryOutputs-30 -target arm64-apple-macos12.0 -module-can-import-version Foundation 5027.0.69 5027.0.69 -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 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/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib/swift/host/plugins/libSwiftUIMacros.dylib\#/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/bin/swift-plugin-server\#SwiftUIMacros -load-resolved-plugin \#/Users/admin/builder/spi-builder-workspace/.build/out/Products/Debug/TestingMacros\#TestingMacros -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-testing.build/Debug/Testing-t.build/Objects-normal/arm64/Testing-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 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error: Build failed
BUILD FAILURE 6.4 macosSpm