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Build Information

Failed to build swift-driver, reference 0.50800.0 (2353b3), with Swift 6.4 for macOS (SPM) on 20 Sep 2026 02:22:23 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/SDGGiesbrecht/swift-driver.git
Reference: 0.50800.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/SDGGiesbrecht/swift-driver
 * tag               0.50800.0  -> FETCH_HEAD
HEAD is now at 2353b37 Widened dependency constraints.
Cloned https://github.com/SDGGiesbrecht/swift-driver.git
Revision (git rev-parse @):
2353b37ce91a0fa587e16fba1ca205353781e0ed
SUCCESS checkout https://github.com/SDGGiesbrecht/swift-driver.git at 0.50800.0
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/SDGGiesbrecht/swift-driver.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 / 952]
[Planning deferred tasks]
[149 / 408]
[163 / 413] SystemPackage
[169 / 423] llvmSupport
[172 / 427] llvmSupport
[176 / 445]
[179 / 472] ArgumentParserToolInfo
[189 / 472]
[194 / 545]
[203 / 545]
[213 / 545] llvmSupport
[220 / 545]
[224 / 545]
[230 / 545]
[235 / 545]
[241 / 545] llvmSupport
[245 / 545] llvmSupport
[252 / 545] llvmSupport
[254 / 545]
[265 / 545] SystemPackage
[271 / 545] llvmSupport
[274 / 545]
[280 / 545] SystemPackage
[289 / 545]
[291 / 545]
[298 / 545]
[300 / 545]
[304 / 545] llvmSupport
[308 / 545] llvmSupport
[311 / 545] llvmSupport
[312 / 545]
[315 / 545]
[316 / 545] llvmSupport
[318 / 545] llvmSupport
[322 / 545] llvmSupport
[326 / 545] llvmDemangle
[327 / 545] llvmDemangle
[329 / 545] llbuildSwift
[339 / 545] llbuildCore
[340 / 545] llbuildCore
[341 / 545] llbuildCore
[344 / 545] Yams
[352 / 545] llbuildBuildSystem
[354 / 545] llbuildBuildSystem
[355 / 545] llbuildBuildSystem
[357 / 545] llbuildBuildSystem
[359 / 545] llbuildBuildSystem
[361 / 545] llbuildBuildSystem
[362 / 545] llbuildBasic
[366 / 545] llbuildBasic
[367 / 545] llbuildBasic
[368 / 545] llbuildBasic
[372 / 545] llbuildBasic
[374 / 545] libllbuild
Fetching https://github.com/SDGGiesbrecht/swift-llbuild
Fetching https://github.com/jpsim/Yams.git
Fetching https://github.com/apple/swift-tools-support-core.git
Fetching https://github.com/apple/swift-argument-parser.git
[1/11861] Fetching yams
[2/30779] Fetching yams, swift-argument-parser
[3/49156] Fetching yams, swift-argument-parser, swift-llbuild
[1899/56554] Fetching yams, swift-argument-parser, swift-llbuild, swift-tools-support-core
Fetched https://github.com/apple/swift-argument-parser.git (4.68s)
Fetched https://github.com/SDGGiesbrecht/swift-llbuild (4.68s)
Fetched https://github.com/jpsim/Yams.git (4.68s)
Fetched https://github.com/apple/swift-tools-support-core.git (4.68s)
Computing version for https://github.com/apple/swift-tools-support-core.git
Computed https://github.com/apple/swift-tools-support-core.git at 0.5.2 (5.45s)
Fetching https://github.com/apple/swift-system.git
[1/6898] Fetching swift-system
Fetched https://github.com/apple/swift-system.git (1.47s)
Computing version for https://github.com/SDGGiesbrecht/swift-llbuild
Computed https://github.com/SDGGiesbrecht/swift-llbuild at 0.50800.0 (2.15s)
Computing version for https://github.com/apple/swift-system.git
Computed https://github.com/apple/swift-system.git at 1.1.1 (0.65s)
Computing version for https://github.com/jpsim/Yams.git
Computed https://github.com/jpsim/Yams.git at 5.4.0 (0.64s)
Computing version for https://github.com/apple/swift-argument-parser.git
Computed https://github.com/apple/swift-argument-parser.git at 1.8.2 (0.61s)
Creating working copy for https://github.com/jpsim/Yams.git
Working copy of https://github.com/jpsim/Yams.git resolved at 5.4.0
Creating working copy for https://github.com/apple/swift-system.git
Working copy of https://github.com/apple/swift-system.git resolved at 1.1.1
Creating working copy for https://github.com/apple/swift-argument-parser.git
Working copy of https://github.com/apple/swift-argument-parser.git resolved at 1.8.2
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 0.5.2
Creating working copy for https://github.com/SDGGiesbrecht/swift-llbuild
Working copy of https://github.com/SDGGiesbrecht/swift-llbuild resolved at 0.50800.0
/Users/admin/builder/spi-builder-workspace/Sources/makeOptions/makeOptions.cpp:42:2: warning: "Unable to include 'swift/Option/Options.inc', `makeOptions` will not be usable" [-W#warnings]
   42 | #warning "Unable to include 'swift/Option/Options.inc', `makeOptions` will not be usable"
      |  ^
1 warning generated.
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-llbuild/lib/Basic/Subprocess.cpp:88:12: error: static declaration of 'posix_spawn_file_actions_addchdir' follows non-static declaration
   88 | static int posix_spawn_file_actions_addchdir(posix_spawn_file_actions_t * __restrict file_actions,
      |            ^
In file included from /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-llbuild/lib/Basic/Subprocess.cpp:42:
/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX27.0.sdk/usr/include/spawn.h:72:9: note: previous declaration is here
   72 | int     posix_spawn_file_actions_addchdir(posix_spawn_file_actions_t *,
      |         ^
1 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