CXXUnfairLock – Build Information

Has it really been five years since Swift Package Index launched? Read our anniversary blog post!

Build Information

Successful build of CXXUnfairLock, reference main (045ee4), with Swift 6.2 for iOS using Xcode 26.0 on 7 Dec 2025 23:07:54 UTC.

Swift 6 data race errors: 0

Build Command

env DEVELOPER_DIR=/Applications/Xcode-26.0.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme CXXUnfairLock -destination generic/platform=iOS

Build Log

========================================
RunAll
========================================
Builder version: 4.68.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/sbooth/CXXUnfairLock.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/sbooth/CXXUnfairLock
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 045ee4a Comment out implicitly deleted move constructor and assignment operator (#6)
Cloned https://github.com/sbooth/CXXUnfairLock.git
Revision (git rev-parse @):
045ee4a731ef81365625fc779177542ad04c58be
SUCCESS checkout https://github.com/sbooth/CXXUnfairLock.git at main
========================================
Build
========================================
Selected platform:         iOS
Swift version:             6.2
Building package at path:  $PWD
https://github.com/sbooth/CXXUnfairLock.git
Command line invocation:
    /Applications/Xcode-26.0.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Resolve Package Graph
Resolved source packages:
  CXXUnfairLock: /Users/admin/builder/spi-builder-workspace
resolved source packages: CXXUnfairLock
2025-12-07 18:07:45.585 xcodebuild[525:3069] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
  "cxx_language_standard" : "c++11",
  "dependencies" : [
  ],
  "manifest_display_name" : "CXXUnfairLock",
  "name" : "CXXUnfairLock",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "CXXUnfairLock",
      "targets" : [
        "CXXUnfairLock"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "CXXUnfairLockTests",
      "module_type" : "SwiftTarget",
      "name" : "CXXUnfairLockTests",
      "path" : "Tests/CXXUnfairLockTests",
      "sources" : [
        "CXXUnfairLockTests.swift"
      ],
      "target_dependencies" : [
        "CXXUnfairLock"
      ],
      "type" : "test"
    },
    {
      "c99name" : "CXXUnfairLock",
      "module_type" : "ClangTarget",
      "name" : "CXXUnfairLock",
      "path" : "Sources/CXXUnfairLock",
      "product_memberships" : [
        "CXXUnfairLock"
      ],
      "sources" : [
        "UnfairLock.cpp"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.9"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "CXXUnfairLock"
    ]
  }
}
2025-12-07 18:07:50.245 xcodebuild[608:3691] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.0.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme CXXUnfairLock -destination generic/platform=iOS
Command line invocation:
    /Applications/Xcode-26.0.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath /Users/admin/builder/spi-builder-workspace/.derivedData build -scheme CXXUnfairLock -destination generic/platform=iOS
Resolve Package Graph
Resolved source packages:
  CXXUnfairLock: /Users/admin/builder/spi-builder-workspace
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (2 targets)
    Target 'CXXUnfairLock' in project 'CXXUnfairLock'
        ➜ Explicit dependency on target 'CXXUnfairLock' in project 'CXXUnfairLock'
    Target 'CXXUnfairLock' in project 'CXXUnfairLock' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ExecuteExternalTool /Applications/Xcode-26.0.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -isysroot /Applications/Xcode-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.0.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-26.0.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -arch arm64 -isysroot /Applications/Xcode-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.0.sdk -x c++ -c /dev/null
ExecuteExternalTool /Applications/Xcode-26.0.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -arch arm64 -isysroot /Applications/Xcode-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.0.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-26.0.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
Build description signature: 39efc75d328c5e33a64ebc973be2c4c6
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/39efc75d328c5e33a64ebc973be2c4c6.xcbuilddata
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex
ClangStatCache /Applications/Xcode-26.0.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.0.sdk /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/iphoneos26.0-23A339-031f2ee2c39ede4aa7d3d33a6e255a3e.sdkstatcache
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    /Applications/Xcode-26.0.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.0.sdk -o /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/iphoneos26.0-23A339-031f2ee2c39ede4aa7d3d33a6e255a3e.sdkstatcache
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ExplicitPrecompiledModules
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ExplicitPrecompiledModules
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/EagerLinkingTBDs/Debug-iphoneos
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/EagerLinkingTBDs/Debug-iphoneos
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos/PackageFrameworks
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos/PackageFrameworks
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CXXUnfairLock.build/Debug-iphoneos/CXXUnfairLock.build/CXXUnfairLock.DependencyMetadataFileList (in target 'CXXUnfairLock' from project 'CXXUnfairLock')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CXXUnfairLock.build/Debug-iphoneos/CXXUnfairLock.build/CXXUnfairLock.DependencyMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CXXUnfairLock.build/Debug-iphoneos/CXXUnfairLock.build/CXXUnfairLock.DependencyStaticMetadataFileList (in target 'CXXUnfairLock' from project 'CXXUnfairLock')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CXXUnfairLock.build/Debug-iphoneos/CXXUnfairLock.build/CXXUnfairLock.DependencyStaticMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CXXUnfairLock.build/Debug-iphoneos/CXXUnfairLock.build/Objects-normal/arm64/82b82416624d2658e5098eb0a28c15c5-common-args.resp (in target 'CXXUnfairLock' from project 'CXXUnfairLock')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CXXUnfairLock.build/Debug-iphoneos/CXXUnfairLock.build/Objects-normal/arm64/82b82416624d2658e5098eb0a28c15c5-common-args.resp
-target arm64-apple-ios12.0 '-std=c++11' -fmodules -fno-cxx-modules -gmodules '-fmodules-cache-path=/Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex' '-fmodule-name=CXXUnfairLock' '-D_LIBCPP_HARDENING_MODE=_LIBCPP_HARDENING_MODE_DEBUG' -fpascal-strings -O0 -DSWIFT_PACKAGE '-DDEBUG=1' -isysroot /Applications/Xcode-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.0.sdk -g -fvisibility-inlines-hidden -fprofile-instr-generate -fcoverage-mapping -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos/include -I/Users/admin/builder/spi-builder-workspace/Sources/CXXUnfairLock/include -I/Users/admin/builder/spi-builder-workspace/Sources/CXXUnfairLock/include/CXXUnfairLock -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CXXUnfairLock.build/Debug-iphoneos/CXXUnfairLock.build/DerivedSources-normal/arm64 -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CXXUnfairLock.build/Debug-iphoneos/CXXUnfairLock.build/DerivedSources/arm64 -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CXXUnfairLock.build/Debug-iphoneos/CXXUnfairLock.build/DerivedSources -F/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -iframework /Applications/Xcode-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/Frameworks -iframework /Applications/Xcode-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.0.sdk/Developer/Library/Frameworks -DXcode
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CXXUnfairLock.build/Debug-iphoneos/CXXUnfairLock.build/Objects-normal/arm64/CXXUnfairLock.LinkFileList (in target 'CXXUnfairLock' from project 'CXXUnfairLock')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CXXUnfairLock.build/Debug-iphoneos/CXXUnfairLock.build/Objects-normal/arm64/CXXUnfairLock.LinkFileList
CompileC /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CXXUnfairLock.build/Debug-iphoneos/CXXUnfairLock.build/Objects-normal/arm64/UnfairLock.o /Users/admin/builder/spi-builder-workspace/Sources/CXXUnfairLock/UnfairLock.cpp normal arm64 c++ com.apple.compilers.llvm.clang.1_0.compiler (in target 'CXXUnfairLock' from project 'CXXUnfairLock')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

    Using response file: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CXXUnfairLock.build/Debug-iphoneos/CXXUnfairLock.build/Objects-normal/arm64/82b82416624d2658e5098eb0a28c15c5-common-args.resp

    /Applications/Xcode-26.0.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -x c++ -ivfsstatcache /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/iphoneos26.0-23A339-031f2ee2c39ede4aa7d3d33a6e255a3e.sdkstatcache -fmessage-length\=0 -fdiagnostics-show-note-include-stack -fmacro-backtrace-limit\=0 -fno-color-diagnostics -fmodules-prune-interval\=86400 -fmodules-prune-after\=345600 -fbuild-session-file\=/Users/admin/builder/spi-builder-workspace/.derivedData/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 -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 -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/.derivedData/Index.noindex/DataStore @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CXXUnfairLock.build/Debug-iphoneos/CXXUnfairLock.build/Objects-normal/arm64/82b82416624d2658e5098eb0a28c15c5-common-args.resp -MMD -MT dependencies -MF /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CXXUnfairLock.build/Debug-iphoneos/CXXUnfairLock.build/Objects-normal/arm64/UnfairLock.d --serialize-diagnostics /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CXXUnfairLock.build/Debug-iphoneos/CXXUnfairLock.build/Objects-normal/arm64/UnfairLock.dia -c /Users/admin/builder/spi-builder-workspace/Sources/CXXUnfairLock/UnfairLock.cpp -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CXXUnfairLock.build/Debug-iphoneos/CXXUnfairLock.build/Objects-normal/arm64/UnfairLock.o -index-unit-output-path /CXXUnfairLock.build/Debug-iphoneos/CXXUnfairLock.build/Objects-normal/arm64/UnfairLock.o
Ld /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos/CXXUnfairLock.o normal (in target 'CXXUnfairLock' from project 'CXXUnfairLock')
    cd /Users/admin/builder/spi-builder-workspace
    /Applications/Xcode-26.0.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang++ -Xlinker -reproducible -target arm64-apple-ios12.0 -r -isysroot /Applications/Xcode-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.0.sdk -O0 -L/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/EagerLinkingTBDs/Debug-iphoneos -L/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -L/Applications/Xcode-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/lib -F/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/EagerLinkingTBDs/Debug-iphoneos -F/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos -iframework /Applications/Xcode-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/Frameworks -iframework /Applications/Xcode-26.0.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.0.sdk/Developer/Library/Frameworks -filelist /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CXXUnfairLock.build/Debug-iphoneos/CXXUnfairLock.build/Objects-normal/arm64/CXXUnfairLock.LinkFileList -nostdlib -Xlinker -object_path_lto -Xlinker /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CXXUnfairLock.build/Debug-iphoneos/CXXUnfairLock.build/Objects-normal/arm64/CXXUnfairLock_lto.o -rdynamic -Xlinker -no_deduplicate -Xlinker -debug_variant -Xlinker -dependency_info -Xlinker /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CXXUnfairLock.build/Debug-iphoneos/CXXUnfairLock.build/Objects-normal/arm64/CXXUnfairLock_dependency_info.dat -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos/CXXUnfairLock.o
RegisterExecutionPolicyException /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos/CXXUnfairLock.o (in target 'CXXUnfairLock' from project 'CXXUnfairLock')
    cd /Users/admin/builder/spi-builder-workspace
    builtin-RegisterExecutionPolicyException /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-iphoneos/CXXUnfairLock.o
** BUILD SUCCEEDED **
2025-12-07 18:07:51.658 xcodebuild[610:3721] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
Build complete.
{
  "cxx_language_standard" : "c++11",
  "dependencies" : [
  ],
  "manifest_display_name" : "CXXUnfairLock",
  "name" : "CXXUnfairLock",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "CXXUnfairLock",
      "targets" : [
        "CXXUnfairLock"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "CXXUnfairLockTests",
      "module_type" : "SwiftTarget",
      "name" : "CXXUnfairLockTests",
      "path" : "Tests/CXXUnfairLockTests",
      "sources" : [
        "CXXUnfairLockTests.swift"
      ],
      "target_dependencies" : [
        "CXXUnfairLock"
      ],
      "type" : "test"
    },
    {
      "c99name" : "CXXUnfairLock",
      "module_type" : "ClangTarget",
      "name" : "CXXUnfairLock",
      "path" : "Sources/CXXUnfairLock",
      "product_memberships" : [
        "CXXUnfairLock"
      ],
      "sources" : [
        "UnfairLock.cpp"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.9"
}
Done.