Swift Package Index

Build Information

Failed to build Lurker, reference 1.0.0 (010a69), with Swift 6.4 for macOS (SPM) on 18 Sep 2026 06:34:12 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.
========================================
Checkout
========================================
Clone URL: https://github.com/Sam-Spencer/Lurker.git
Reference: 1.0.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/Sam-Spencer/Lurker
 * tag               1.0.0      -> FETCH_HEAD
HEAD is now at 010a697 Update README.md
Cloned https://github.com/Sam-Spencer/Lurker.git
Revision (git rev-parse @):
010a6978a7e316ff64d728b3257e5274ab874c45
SUCCESS checkout https://github.com/Sam-Spencer/Lurker.git at 1.0.0
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/Sam-Spencer/Lurker.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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[20 / 29] Lurker
[30 / 67]
[35 / 67]
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[43 / 67]
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[48 / 67]
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[54 / 67]
[58 / 67] Lurker
error: SwiftCompile normal arm64 failed with a nonzero exit code. Command line:     cd /Users/admin/builder

/Users/admin/builder/spi-builder-workspace/Sources/Lurker/Lurker.swift:111:43: error: 'BGTask' is unavailable in macOS
109 |     // MARK: - Handling
110 |
111 |     func handleMission(backgroundProcess: BGTask, mission: Mission) {
    |                                           `- error: 'BGTask' is unavailable in macOS
112 |         scheduleMission(mission)
113 |
/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX27.0.sdk/System/Library/Frameworks/BackgroundTasks.framework/Headers/BGTask.h:17:12: note: 'BGTask' has been explicitly marked unavailable here
 15 | /// background.
 16 | BG_EXTERN API_AVAILABLE(ios(13.0), tvos(13.0)) API_UNAVAILABLE(macos) API_UNAVAILABLE(watchos)
 17 | @interface BGTask : NSObject
    |            `- note: 'BGTask' has been explicitly marked unavailable here
 18 |
 19 | /// The string identifier of the task.
/Users/admin/builder/spi-builder-workspace/Sources/Lurker/Mission.swift:58:30: error: 'BGTask' is unavailable in macOS
56 |     ///   does not complete before the `taskInfo`'s `expirationHandler` is called.
57 |     ///
58 |     func runTask(_ taskInfo: BGTask) async -> Bool
   |                              `- error: 'BGTask' is unavailable in macOS
59 |
60 |     /// Specify the earliest allowable time (from now) that the system may schedule this
/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX27.0.sdk/System/Library/Frameworks/BackgroundTasks.framework/Headers/BGTask.h:17:12: note: 'BGTask' has been explicitly marked unavailable here
 15 | /// background.
 16 | BG_EXTERN API_AVAILABLE(ios(13.0), tvos(13.0)) API_UNAVAILABLE(macos) API_UNAVAILABLE(watchos)
 17 | @interface BGTask : NSObject
    |            `- note: 'BGTask' has been explicitly marked unavailable here
 18 |
 19 | /// The string identifier of the task.
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/Lurker/Lurker.swift /Users/admin/builder/spi-builder-workspace/Sources/Lurker/Mission.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/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/Lurker.build/Debug/Lurker-t.build/Objects-normal/arm64/Lurker-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 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/Lurker.build/Debug/Lurker-t.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/Lurker.build/Debug/Lurker-t.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/Lurker.build/Debug/Lurker-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name Lurker -const-gather-protocols-file /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/Lurker.build/Debug/Lurker-t.build/Objects-normal/arm64/Lurker_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/Lurker.build/Debug/Lurker-t.build/Objects-normal/arm64/Lurker.swiftdoc -emit-module-source-info-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/Lurker.build/Debug/Lurker-t.build/Objects-normal/arm64/Lurker.swiftsourceinfo -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/Lurker.build/Debug/Lurker-t.build/Objects-normal/arm64/Lurker-Swift.h -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/Lurker.build/Debug/Lurker-t.build/Objects-normal/arm64/Lurker-primary-emit-module.dia -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/Lurker.build/Debug/Lurker-t.build/Objects-normal/arm64/Lurker-primary-emit-module.d -parse-as-library -o /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/Lurker.build/Debug/Lurker-t.build/Objects-normal/arm64/Lurker.swiftmodule -emit-abi-descriptor-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/Lurker.build/Debug/Lurker-t.build/Objects-normal/arm64/Lurker.abi.json
error: Build failed
BUILD FAILURE 6.4 macosSpm