Swift Package Index

Build Information

Failed to build KlarLog, reference main (42608c), with Swift 6.4 for macOS (SPM) on 23 Sep 2026 06:43:21 UTC.

Build Command

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

Build Log

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RunAll
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Builder version: 5.1.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/henribredt/KlarLog.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/henribredt/KlarLog
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 42608cc Fix typos in README.md regarding logger destinations
Cloned https://github.com/henribredt/KlarLog.git
Revision (git rev-parse @):
42608cc8fa9438dba8e97ebbc90e8101011c9d89
SUCCESS checkout https://github.com/henribredt/KlarLog.git at main
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Build
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Selected platform:         macosSpm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/henribredt/KlarLog.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun swift build --arch arm64
Building for debugging...
[Planning deferred tasks]
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error: SwiftCompile normal arm64 failed with a nonzero exit code. Command line:     cd /Users/admin/builder

/Users/admin/builder/spi-builder-workspace/Sources/KlarLog/LogDestinations/LocalFileDestination.swift:172:32: error: 'appending(path:directoryHint:)' is only available in macOS 13.0 or newer
165 |
166 | /// An actor that serializes all file operations for thread-safe access.
167 | private actor FileOperationActor {
    |               `- note: add '@available' attribute to enclosing actor
168 |     private let fileURL: URL
169 |     private let maxMessages: Int
170 |
171 |     init(fileURL: URL, fileName: String, maxMessages: Int) {
    |     `- note: add '@available' attribute to enclosing initializer
172 |         self.fileURL = fileURL.appending(path: "\(fileName).txt")
    |                                |- error: 'appending(path:directoryHint:)' is only available in macOS 13.0 or newer
    |                                `- note: add 'if #available' version check
173 |         self.maxMessages = maxMessages
174 |     }
/Users/admin/builder/spi-builder-workspace/Sources/KlarLog/Sample.swift:22:27: error: 'documentsDirectory' is only available in macOS 13.0 or newer
13 | }
14 |
15 | struct LogDestinations: Sendable {
   |        `- note: add '@available' attribute to enclosing struct
16 |     // create a private destination if the destionation will not be accessed later
17 |     private let console = ConsoleDestination()
   :
20 |     public let file = LocalFileDestination(
21 |         logForLogLevels: LogLevel.allCases,
22 |         fileLocationURL: .documentsDirectory,
   |                           `- error: 'documentsDirectory' is only available in macOS 13.0 or newer
23 |         maxMessages: 1000
24 |     )
Failed frontend command:
/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift-frontend -frontend -emit-module -experimental-skip-non-inlinable-function-bodies-without-types /Users/admin/builder/spi-builder-workspace/Sources/KlarLog/CategoryLogger.swift /Users/admin/builder/spi-builder-workspace/Sources/KlarLog/Export.swift /Users/admin/builder/spi-builder-workspace/Sources/KlarLog/KlarLog.swift /Users/admin/builder/spi-builder-workspace/Sources/KlarLog/LogDestinations/ConsoleDestination.swift /Users/admin/builder/spi-builder-workspace/Sources/KlarLog/LogDestinations/LocalFileDestination.swift /Users/admin/builder/spi-builder-workspace/Sources/KlarLog/LogDestinations/LogDestination.swift /Users/admin/builder/spi-builder-workspace/Sources/KlarLog/LogLevel.swift /Users/admin/builder/spi-builder-workspace/Sources/KlarLog/Sample.swift -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/libPreviewsMacros.dylib\#/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/bin/swift-plugin-server\#PreviewsMacros -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 -load-resolved-plugin /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 -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/KlarLog.build/Debug/KlarLog-t.build/Objects-normal/arm64/KlarLog-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 -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 -swift-version 6 -Onone -D SWIFT_PACKAGE -D DEBUG -D SWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -D Xcode -serialize-debugging-options -enable-upcoming-feature NonisolatedNonsendingByDefault -enable-upcoming-feature InferIsolatedConformances -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/KlarLog.build/Debug/KlarLog-t.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/KlarLog.build/Debug/KlarLog-t.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/KlarLog.build/Debug/KlarLog-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name KlarLog -package-name spi_builder_workspace -const-gather-protocols-file /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/KlarLog.build/Debug/KlarLog-t.build/Objects-normal/arm64/KlarLog_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 -emit-module-doc-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/KlarLog.build/Debug/KlarLog-t.build/Objects-normal/arm64/KlarLog.swiftdoc -emit-module-source-info-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/KlarLog.build/Debug/KlarLog-t.build/Objects-normal/arm64/KlarLog.swiftsourceinfo -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/KlarLog.build/Debug/KlarLog-t.build/Objects-normal/arm64/KlarLog-Swift.h -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/KlarLog.build/Debug/KlarLog-t.build/Objects-normal/arm64/KlarLog-primary-emit-module.dia -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/KlarLog.build/Debug/KlarLog-t.build/Objects-normal/arm64/KlarLog-primary-emit-module.d -parse-as-library -o /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/KlarLog.build/Debug/KlarLog-t.build/Objects-normal/arm64/KlarLog.swiftmodule -emit-abi-descriptor-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/KlarLog.build/Debug/KlarLog-t.build/Objects-normal/arm64/KlarLog.abi.json
error: Build failed
BUILD FAILURE 6.4 macosSpm