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Build Information

Failed to build swift-create-xcframework, reference main (88472e), with Swift 6.4 for macOS (SPM) on 18 Sep 2026 15:06:49 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/unsignedapps/swift-create-xcframework.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/unsignedapps/swift-create-xcframework
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 88472e8 Update README.md
Cloned https://github.com/unsignedapps/swift-create-xcframework.git
Revision (git rev-parse @):
88472e8e4f0227a47ca461fccd38c6d080ad92f2
SUCCESS checkout https://github.com/unsignedapps/swift-create-xcframework.git at main
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/unsignedapps/swift-create-xcframework.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun swift build --arch arm64
Building for debugging...
[Computing dependencies]
[Constructing description]
[Pre-planning 1 / 1248]
[Planning deferred tasks]
[Constructing 843 / 3458]
[224 / 1286]
[238 / 1294] SystemPackage
[245 / 1313] llvmSupport
[245 / 1317] OrderedCollections
[249 / 1344]
[253 / 1371]
[264 / 1371]
[273 / 1417] Crypto
[279 / 1429]
[281 / 1429]
[286 / 1429]
[291 / 1429]
[306 / 1429] llvmSupport
[311 / 1429] llvmSupport
[313 / 1429] llvmSupport
[314 / 1429]
[317 / 1429]
[331 / 1429] llvmSupport
[333 / 1429] llvmSupport
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[337 / 1429] SystemPackage
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[356 / 1429] llvmSupport
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[369 / 1429] llvmSupport
[373 / 1429] llvmSupport
[377 / 1429] llvmDemangle
[378 / 1429] llbuildNinja
[381 / 1429] llbuildSwift
[384 / 1429]
[400 / 1429] Crypto
[405 / 1429] Yams
[414 / 1429] Crypto
[422 / 1429] llbuildBuildSystem
[424 / 1429] llbuildBuildSystem
[427 / 1429] llbuildBuildSystem
[429 / 1429] llbuildBasic
[431 / 1429] llbuildBasic
[433 / 1429] llbuildBasic
[434 / 1429] llbuildBasic
[436 / 1429] llbuildBasic
[439 / 1429] libllbuild
Fetching https://github.com/apple/swift-package-manager.git
[1/191665] Fetching swift-package-manager
Fetched https://github.com/apple/swift-package-manager.git (41.66s)
Fetching https://github.com/apple/swift-tools-support-core.git
[1/7390] Fetching swift-tools-support-core
Fetched https://github.com/apple/swift-tools-support-core.git (1.61s)
Fetching https://github.com/apple/swift-llbuild.git
[1/29880] Fetching swift-llbuild
Fetched https://github.com/apple/swift-llbuild.git (3.91s)
Fetching https://github.com/apple/swift-driver.git
[1/38833] Fetching swift-driver
Fetched https://github.com/apple/swift-driver.git (3.60s)
Fetching https://github.com/apple/swift-crypto.git
Fetching https://github.com/jpsim/Yams.git
Fetching https://github.com/apple/swift-system.git
Fetching https://github.com/apple/swift-collections.git
Fetching https://github.com/apple/swift-argument-parser.git
[1/18542] Fetching swift-crypto
[2/30403] Fetching swift-crypto, yams
[3/37301] Fetching swift-crypto, yams, swift-system
[1270/56219] Fetching swift-crypto, yams, swift-system, swift-argument-parser
[1457/83539] Fetching swift-crypto, yams, swift-system, swift-argument-parser, swift-collections
Fetched https://github.com/apple/swift-system.git (3.42s)
Fetched https://github.com/apple/swift-collections.git (3.42s)
Fetched https://github.com/apple/swift-argument-parser.git (3.42s)
Fetched https://github.com/apple/swift-crypto.git (3.42s)
[6998/11861] Fetching yams
Fetched https://github.com/jpsim/Yams.git (5.86s)
Computing version for https://github.com/apple/swift-argument-parser.git
Computed https://github.com/apple/swift-argument-parser.git at 1.0.3 (6.54s)
Computing version for https://github.com/apple/swift-system.git
Computed https://github.com/apple/swift-system.git at 1.1.1 (0.63s)
Computing version for https://github.com/apple/swift-crypto.git
Computed https://github.com/apple/swift-crypto.git at 1.1.7 (0.63s)
Computing version for https://github.com/apple/swift-collections.git
Computed https://github.com/apple/swift-collections.git at 1.0.6 (0.64s)
Computing version for https://github.com/jpsim/Yams.git
Computed https://github.com/jpsim/Yams.git at 4.0.6 (0.61s)
Creating working copy for https://github.com/apple/swift-crypto.git
Working copy of https://github.com/apple/swift-crypto.git resolved at 1.1.7
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 1.0.3
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-llbuild.git
Working copy of https://github.com/apple/swift-llbuild.git resolved at release/5.7 (564424d)
Creating working copy for https://github.com/apple/swift-collections.git
Working copy of https://github.com/apple/swift-collections.git resolved at 1.0.6
Creating working copy for https://github.com/jpsim/Yams.git
Working copy of https://github.com/jpsim/Yams.git resolved at 4.0.6
Creating working copy for https://github.com/apple/swift-package-manager.git
Working copy of https://github.com/apple/swift-package-manager.git resolved at release/5.7 (c6e40ad)
Creating working copy for https://github.com/apple/swift-driver.git
Working copy of https://github.com/apple/swift-driver.git resolved at release/5.7 (82b274a)
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 release/5.7 (286b48b)
/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