SwiftPM – Build Information – Swift Package Index

Build Information

Failed to build SwiftPM, reference 0.6.0 (f5ea39), with Swift 6.4 for macOS (SPM) on 20 Sep 2026 21:31:11 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/swiftlang/swift-package-manager.git
Reference: 0.6.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/swiftlang/swift-package-manager
 * tag               0.6.0      -> FETCH_HEAD
HEAD is now at f5ea397 [Package.swift] Require swift-llbuild and swift-tools-support-core using semver dependencies
Cloned https://github.com/swiftlang/swift-package-manager.git
Revision (git rev-parse @):
f5ea3972d7d6c574e8bb16a19b2a7bca98ea131b
SUCCESS checkout https://github.com/swiftlang/swift-package-manager.git at 0.6.0
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/swiftlang/swift-package-manager.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 / 946]
[Planning 318 / 946]
[Planning deferred tasks]
[170 / 444]
[180 / 448] llvmSupport
[183 / 448] TSCLibc
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[207 / 504] llvmSupport
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[219 / 538] llvmSupport
[223 / 538] llvmSupport
[225 / 538]
[226 / 538] llvmSupport
[231 / 538]
[237 / 538] TSCLibc
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[249 / 538] llvmSupport
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[324 / 538] llbuildBasic
[328 / 538] llbuildBasic
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[334 / 538] llbuildBasic
[336 / 538] llbuildBasic
[339 / 538] libllbuild
Fetching https://github.com/apple/swift-llbuild.git
Fetching https://github.com/apple/swift-tools-support-core.git
[1/7398] Fetching swift-tools-support-core
[1851/37306] Fetching swift-tools-support-core, swift-llbuild
Fetched https://github.com/apple/swift-llbuild.git (3.22s)
Fetched https://github.com/apple/swift-tools-support-core.git (3.22s)
Computing version for https://github.com/apple/swift-tools-support-core.git
Computed https://github.com/apple/swift-tools-support-core.git at 0.1.0 (3.93s)
Computing version for https://github.com/apple/swift-llbuild.git
Computed https://github.com/apple/swift-llbuild.git at 0.3.0 (0.68s)
Creating working copy for https://github.com/apple/swift-tools-support-core.git
Working copy of https://github.com/apple/swift-tools-support-core.git resolved at 0.1.0
Creating working copy for https://github.com/apple/swift-llbuild.git
Working copy of https://github.com/apple/swift-llbuild.git resolved at 0.3.0
warning: 'swift-llbuild': ignoring broken symlink /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-llbuild/lib/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm
warning: 'swift-llbuild': ignoring broken symlink /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-llbuild/lib/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm/Demangle/include/llvm
[1m/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-llbuild/lib/Basic/Subprocess.cpp:87:12: [0m[0;1;31merror: [0m[1mstatic declaration of 'posix_spawn_file_actions_addchdir' follows non-static declaration[0m
   87 | [0;34mstatic[0m [0;34mint[0m posix_spawn_file_actions_addchdir(posix_spawn_file_actions_t * __restrict file_actions,[0m
      | [0;1;32m           ^
[0mIn file included from /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-llbuild/lib/Basic/Subprocess.cpp:41:
[1m/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX27.0.sdk/usr/include/spawn.h:72:9: [0m[0;1;36mnote: [0mprevious declaration is here[0m
   72 | [0;34mint[0m     posix_spawn_file_actions_addchdir(posix_spawn_file_actions_t *,[0m
      | [0;1;32m        ^
[0m1 error generated.
error: CompileC /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/llbuild.build/Debug/llbuildBasic-t.build/Objects-normal/arm64/Subprocess.o /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-llbuild/lib/Basic/Subprocess.cpp normal arm64 c++ com.apple.compilers.llvm.clang.1_0.compiler failed with a nonzero exit code. Command line:     cd /Users/admin/builder

    Using response file: /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/llbuild.build/Debug/llbuildBasic-t.build/Objects-normal/arm64/82b82416624d2658e5098eb0a28c15c5-common-args.resp

    /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -x c++ -ivfsstatcache /Users/admin/builder/spi-builder-workspace/.build/out/SDKStatCaches.noindex/macosx27.0-26A425-80c5bbf1d171475443272936d42f90a36a22442a12e9d48fe1a705f55a1adfc4.sdkstatcache -target arm64-apple-macos12.0 -fmessage-length\=0 -fdiagnostics-show-note-include-stack -fmacro-backtrace-limit\=0 -fcolor-diagnostics -fmodules-prune-interval\=86400 -fmodules-prune-after\=345600 -fbuild-session-file\=/Users/admin/builder/spi-builder-workspace/.build/out/ModuleCache.noindex/Session.modulevalidation -fmodules-validate-once-per-build-session -Wnon-modular-include-in-framework-module -Werror\=non-modular-include-in-framework-module -Wno-trigraphs -Wno-missing-field-initializers -Wno-missing-prototypes -Wno-return-type -Wno-non-virtual-dtor -Wno-overloaded-virtual -Wno-exit-time-destructors -Wno-missing-braces -Wparentheses -Wswitch -Wno-unused-function -Wno-unused-label -Wno-unused-parameter -Wno-unused-variable -Wunused-value -Wno-empty-body -Wno-uninitialized -Wno-unknown-pragmas -w -Wno-shadow -Wno-four-char-constants -Wno-conversion -Wno-constant-conversion -Wno-int-conversion -Wno-bool-conversion -Wno-enum-conversion -Wno-float-conversion -Wno-non-literal-null-conversion -Wno-objc-literal-conversion -Wshorten-64-to-32 -Wno-newline-eof -Wno-c++11-extensions -Wno-implicit-fallthrough -isysroot /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX27.0.sdk -fstrict-aliasing -Wdeprecated-declarations -Winvalid-offsetof -Wno-sign-conversion -Wno-infinite-recursion -Wno-move -Wno-comma -Wno-block-capture-autoreleasing -Wno-strict-prototypes -Wno-range-loop-analysis -Wno-semicolon-before-method-body -index-store-path /Users/admin/builder/spi-builder-workspace/.build/out @/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/llbuild.build/Debug/llbuildBasic-t.build/Objects-normal/arm64/82b82416624d2658e5098eb0a28c15c5-common-args.resp -MMD -MT dependencies -MF /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/llbuild.build/Debug/llbuildBasic-t.build/Objects-normal/arm64/Subprocess.d --serialize-diagnostics /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/llbuild.build/Debug/llbuildBasic-t.build/Objects-normal/arm64/Subprocess.dia -c /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-llbuild/lib/Basic/Subprocess.cpp -o /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/llbuild.build/Debug/llbuildBasic-t.build/Objects-normal/arm64/Subprocess.o -index-unit-output-path /llbuild.build/Debug/llbuildBasic-t.build/Objects-normal/arm64/Subprocess.o
error: Build failed
BUILD FAILURE 6.4 macosSpm