CodeMeasureKit – Build Information

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

Build Information

Failed to build CodeMeasureKit, reference main (fa5160), with Swift 6.1 for macOS (Xcode) using Xcode 16.3 on 29 Apr 2025 16:55:49 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme CodeMeasureKit -destination platform=macOS,arch=arm64

Build Log

========================================
RunAll
========================================
Builder version: 4.61.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/ipavlidakis/code-measure-kit.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/ipavlidakis/code-measure-kit
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at fa51601 Add measurer for executionTime
Cloned https://github.com/ipavlidakis/code-measure-kit.git
Revision (git rev-parse @):
fa51601449f8bd8d696a5d3d2ebc3cbad238be7f
SUCCESS checkout https://github.com/ipavlidakis/code-measure-kit.git at main
========================================
Build
========================================
Selected platform:         macosXcodebuild
Swift version:             6.1
Building package at path:  $PWD
https://github.com/ipavlidakis/code-measure-kit.git
https://github.com/ipavlidakis/code-measure-kit.git
{
  "dependencies" : [
  ],
  "manifest_display_name" : "CodeMeasureKit",
  "name" : "CodeMeasureKit",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "14.0"
    },
    {
      "name" : "macos",
      "version" : "10.14"
    },
    {
      "name" : "maccatalyst",
      "version" : "14.0"
    },
    {
      "name" : "tvos",
      "version" : "14.0"
    },
    {
      "name" : "watchos",
      "version" : "4.0"
    },
    {
      "name" : "visionos",
      "version" : "1.0"
    }
  ],
  "products" : [
    {
      "name" : "CodeMeasureKit",
      "targets" : [
        "CodeMeasureKit"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "CodeMeasureKit",
      "module_type" : "SwiftTarget",
      "name" : "CodeMeasureKit",
      "path" : "Sources/CodeMeasureKit",
      "product_memberships" : [
        "CodeMeasureKit"
      ],
      "sources" : [
        "CodeMeasureKit.swift",
        "UnfairQueue.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.9"
}
Command line invocation:
    /Applications/Xcode-16.3.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Resolve Package Graph
Resolved source packages:
  CodeMeasureKit: /Users/admin/builder/spi-builder-workspace
resolved source packages: CodeMeasureKit
{
  "dependencies" : [
  ],
  "manifest_display_name" : "CodeMeasureKit",
  "name" : "CodeMeasureKit",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "14.0"
    },
    {
      "name" : "macos",
      "version" : "10.14"
    },
    {
      "name" : "maccatalyst",
      "version" : "14.0"
    },
    {
      "name" : "tvos",
      "version" : "14.0"
    },
    {
      "name" : "watchos",
      "version" : "4.0"
    },
    {
      "name" : "visionos",
      "version" : "1.0"
    }
  ],
  "products" : [
    {
      "name" : "CodeMeasureKit",
      "targets" : [
        "CodeMeasureKit"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "CodeMeasureKit",
      "module_type" : "SwiftTarget",
      "name" : "CodeMeasureKit",
      "path" : "Sources/CodeMeasureKit",
      "product_memberships" : [
        "CodeMeasureKit"
      ],
      "sources" : [
        "CodeMeasureKit.swift",
        "UnfairQueue.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.9"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "CodeMeasureKit"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme CodeMeasureKit -destination platform=macOS,arch=arm64 OTHER_SWIFT_FLAGS=-stats-output-dir .stats -strict-concurrency=complete -enable-upcoming-feature StrictConcurrency -enable-upcoming-feature DisableOutwardActorInference -enable-upcoming-feature GlobalActorIsolatedTypesUsability -enable-upcoming-feature InferSendableFromCaptures
Command line invocation:
    /Applications/Xcode-16.3.0.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 CodeMeasureKit -destination platform=macOS,arch=arm64 "OTHER_SWIFT_FLAGS=-stats-output-dir .stats -strict-concurrency=complete -enable-upcoming-feature StrictConcurrency -enable-upcoming-feature DisableOutwardActorInference -enable-upcoming-feature GlobalActorIsolatedTypesUsability -enable-upcoming-feature InferSendableFromCaptures"
Build settings from command line:
    OTHER_SWIFT_FLAGS = -stats-output-dir .stats -strict-concurrency=complete -enable-upcoming-feature StrictConcurrency -enable-upcoming-feature DisableOutwardActorInference -enable-upcoming-feature GlobalActorIsolatedTypesUsability -enable-upcoming-feature InferSendableFromCaptures
Resolve Package Graph
Resolved source packages:
  CodeMeasureKit: /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 'CodeMeasureKit' in project 'CodeMeasureKit'
        ➜ Explicit dependency on target 'CodeMeasureKit' in project 'CodeMeasureKit'
    Target 'CodeMeasureKit' in project 'CodeMeasureKit' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ExecuteExternalTool /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -isysroot /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.4.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc --version
ExecuteExternalTool /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
Build description signature: 021afd12fb2d728d903dbd9f254e4e6b
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/021afd12fb2d728d903dbd9f254e4e6b.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-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.4.sdk /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx15.4-24E241-8287b8f5db97e746a1562fbca0c9d29b.sdkstatcache
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.4.sdk -o /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx15.4-24E241-8287b8f5db97e746a1562fbca0c9d29b.sdkstatcache
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/EagerLinkingTBDs/Debug
    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
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/PackageFrameworks
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/PackageFrameworks
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/CodeMeasureKit.modulemap (in target 'CodeMeasureKit' from project 'CodeMeasureKit')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/CodeMeasureKit.modulemap
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/CodeMeasureKit.DependencyStaticMetadataFileList (in target 'CodeMeasureKit' from project 'CodeMeasureKit')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/CodeMeasureKit.DependencyStaticMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/CodeMeasureKit.DependencyMetadataFileList (in target 'CodeMeasureKit' from project 'CodeMeasureKit')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/CodeMeasureKit.DependencyMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/Objects-normal/arm64/CodeMeasureKit.SwiftConstValuesFileList (in target 'CodeMeasureKit' from project 'CodeMeasureKit')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/Objects-normal/arm64/CodeMeasureKit.SwiftConstValuesFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/Objects-normal/arm64/CodeMeasureKit-OutputFileMap.json (in target 'CodeMeasureKit' from project 'CodeMeasureKit')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/Objects-normal/arm64/CodeMeasureKit-OutputFileMap.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/Objects-normal/arm64/CodeMeasureKit.SwiftFileList (in target 'CodeMeasureKit' from project 'CodeMeasureKit')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/Objects-normal/arm64/CodeMeasureKit.SwiftFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/Objects-normal/arm64/CodeMeasureKit_const_extract_protocols.json (in target 'CodeMeasureKit' from project 'CodeMeasureKit')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/Objects-normal/arm64/CodeMeasureKit_const_extract_protocols.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/Objects-normal/arm64/CodeMeasureKit.LinkFileList (in target 'CodeMeasureKit' from project 'CodeMeasureKit')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/Objects-normal/arm64/CodeMeasureKit.LinkFileList
Copy /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps/CodeMeasureKit.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/CodeMeasureKit.modulemap (in target 'CodeMeasureKit' from project 'CodeMeasureKit')
    cd /Users/admin/builder/spi-builder-workspace
    builtin-copy -exclude .DS_Store -exclude CVS -exclude .svn -exclude .git -exclude .hg -resolve-src-symlinks /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/CodeMeasureKit.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps
SwiftDriver CodeMeasureKit normal arm64 com.apple.xcode.tools.swift.compiler (in target 'CodeMeasureKit' from project 'CodeMeasureKit')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftDriver -- /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -module-name CodeMeasureKit -Onone -enforce-exclusivity\=checked @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/Objects-normal/arm64/CodeMeasureKit.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -stats-output-dir .stats -strict-concurrency\=complete -enable-upcoming-feature StrictConcurrency -enable-upcoming-feature DisableOutwardActorInference -enable-upcoming-feature GlobalActorIsolatedTypesUsability -enable-upcoming-feature InferSendableFromCaptures -plugin-path /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -enable-experimental-feature DebugDescriptionMacro -sdk /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.4.sdk -target arm64-apple-macos10.14 -g -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -Xfrontend -serialize-debugging-options -enable-testing -index-store-path /Users/admin/builder/spi-builder-workspace/.derivedData/Index.noindex/DataStore -swift-version 5 -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -I /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -F /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx15.4-24E241-8287b8f5db97e746a1562fbca0c9d29b.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/Objects-normal/arm64/CodeMeasureKit-OutputFileMap.json -use-frontend-parseable-output -save-temps -no-color-diagnostics -serialize-diagnostics -emit-dependencies -emit-module -emit-module-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/Objects-normal/arm64/CodeMeasureKit.swiftmodule -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -package-name spi_builder_workspace -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/swift-overrides.hmap -emit-const-values -Xfrontend -const-gather-protocols-file -Xfrontend /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/Objects-normal/arm64/CodeMeasureKit_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -emit-objc-header -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/Objects-normal/arm64/CodeMeasureKit-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
SwiftCompile normal arm64 Compiling\ UnfairQueue.swift /Users/admin/builder/spi-builder-workspace/Sources/CodeMeasureKit/UnfairQueue.swift (in target 'CodeMeasureKit' from project 'CodeMeasureKit')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/CodeMeasureKit/UnfairQueue.swift (in target 'CodeMeasureKit' from project 'CodeMeasureKit')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftEmitModule normal arm64 Emitting\ module\ for\ CodeMeasureKit (in target 'CodeMeasureKit' from project 'CodeMeasureKit')
Failed frontend command:
/Applications/Xcode-16.3.0.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/CodeMeasureKit/CodeMeasureKit.swift /Users/admin/builder/spi-builder-workspace/Sources/CodeMeasureKit/UnfairQueue.swift -target arm64-apple-macos10.14 -Xllvm -aarch64-use-tbi -enable-objc-interop -sdk /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.4.sdk -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -I /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -F /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/Frameworks -no-color-diagnostics -enable-testing -g -debug-info-format\=dwarf -dwarf-version\=4 -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -swift-version 5 -enforce-exclusivity\=checked -stats-output-dir /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode/.stats -Onone -D SWIFT_PACKAGE -D DEBUG -serialize-debugging-options -const-gather-protocols-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/Objects-normal/arm64/CodeMeasureKit_const_extract_protocols.json -enable-upcoming-feature StrictConcurrency -enable-upcoming-feature DisableOutwardActorInference -enable-upcoming-feature GlobalActorIsolatedTypesUsability -enable-upcoming-feature InferSendableFromCaptures -enable-experimental-feature DebugDescriptionMacro -strict-concurrency\=complete -empty-abi-descriptor -plugin-path /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -Xcc -working-directory -Xcc /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -resource-dir /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift -enable-anonymous-context-mangled-names -file-compilation-dir /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx15.4-24E241-8287b8f5db97e746a1562fbca0c9d29b.sdkstatcache -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/swift-overrides.hmap -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -module-name CodeMeasureKit -package-name spi_builder_workspace -frontend-parseable-output -disable-clang-spi -target-sdk-version 15.4 -target-sdk-name macosx15.4 -external-plugin-path /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib/swift/host/plugins\#/Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/bin/swift-plugin-server -external-plugin-path /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/local/lib/swift/host/plugins\#/Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/bin/swift-plugin-server -in-process-plugin-server-path /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/libSwiftInProcPluginServer.dylib -plugin-path /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins -plugin-path /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/local/lib/swift/host/plugins -emit-module-doc-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/Objects-normal/arm64/CodeMeasureKit.swiftdoc -emit-module-source-info-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/Objects-normal/arm64/CodeMeasureKit.swiftsourceinfo -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/Objects-normal/arm64/CodeMeasureKit-Swift.h -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/Objects-normal/arm64/CodeMeasureKit-master-emit-module.dia -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/Objects-normal/arm64/CodeMeasureKit-master-emit-module.d -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/Objects-normal/arm64/CodeMeasureKit.swiftmodule -emit-abi-descriptor-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/Objects-normal/arm64/CodeMeasureKit.abi.json
EmitSwiftModule normal arm64 (in target 'CodeMeasureKit' from project 'CodeMeasureKit')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

/Users/admin/builder/spi-builder-workspace/Sources/CodeMeasureKit/CodeMeasureKit.swift:100:14: error: 'Logger' is only available in macOS 11.0 or newer
let logger = Logger(
             ^
/Users/admin/builder/spi-builder-workspace/Sources/CodeMeasureKit/CodeMeasureKit.swift:100:5: note: add @available attribute to enclosing let
let logger = Logger(
    ^
/Users/admin/builder/spi-builder-workspace/Sources/CodeMeasureKit/CodeMeasureKit.swift:119:30: error: 'AnyCancellable' is only available in macOS 10.15 or newer
    private var cancellable: AnyCancellable?
                             ^
/Users/admin/builder/spi-builder-workspace/Sources/CodeMeasureKit/CodeMeasureKit.swift:111:21: note: add @available attribute to enclosing class
private final class MeasureCallRateStorage: @unchecked Sendable {
                    ^
/Users/admin/builder/spi-builder-workspace/Sources/CodeMeasureKit/CodeMeasureKit.swift:293:26: error: 'PassthroughSubject' is only available in macOS 10.15 or newer
    private let subject: PassthroughSubject<TimeInterval, Never> = .init()
                         ^
/Users/admin/builder/spi-builder-workspace/Sources/CodeMeasureKit/CodeMeasureKit.swift:279:21: note: add @available attribute to enclosing class
private final class ExecutionTimeMeter {
                    ^
SwiftCompile normal arm64 Compiling\ CodeMeasureKit.swift /Users/admin/builder/spi-builder-workspace/Sources/CodeMeasureKit/CodeMeasureKit.swift (in target 'CodeMeasureKit' from project 'CodeMeasureKit')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/CodeMeasureKit/CodeMeasureKit.swift (in target 'CodeMeasureKit' from project 'CodeMeasureKit')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

--- xcodebuild: WARNING: Using the first of multiple matching destinations:
{ platform:macOS, arch:arm64, id:549ece7b4de711f0d79e2eea89c116d4caf6196b, name:My Mac }
{ platform:macOS, arch:arm64, variant:Mac Catalyst, id:549ece7b4de711f0d79e2eea89c116d4caf6196b, name:My Mac }
{ platform:macOS, arch:arm64, variant:DriverKit, id:549ece7b4de711f0d79e2eea89c116d4caf6196b, name:My Mac }
{ platform:macOS, arch:arm64, variant:Designed for [iPad,iPhone], id:549ece7b4de711f0d79e2eea89c116d4caf6196b, name:My Mac }
** BUILD FAILED **
The following build commands failed:
	SwiftEmitModule normal arm64 Emitting\ module\ for\ CodeMeasureKit (in target 'CodeMeasureKit' from project 'CodeMeasureKit')
	EmitSwiftModule normal arm64 (in target 'CodeMeasureKit' from project 'CodeMeasureKit')
	Building workspace spi-builder-workspace with scheme CodeMeasureKit
(3 failures)
Command line invocation:
    /Applications/Xcode-16.3.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Resolved source packages:
  CodeMeasureKit: /Users/admin/builder/spi-builder-workspace
resolved source packages: CodeMeasureKit
{
  "dependencies" : [
  ],
  "manifest_display_name" : "CodeMeasureKit",
  "name" : "CodeMeasureKit",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "14.0"
    },
    {
      "name" : "macos",
      "version" : "10.14"
    },
    {
      "name" : "maccatalyst",
      "version" : "14.0"
    },
    {
      "name" : "tvos",
      "version" : "14.0"
    },
    {
      "name" : "watchos",
      "version" : "4.0"
    },
    {
      "name" : "visionos",
      "version" : "1.0"
    }
  ],
  "products" : [
    {
      "name" : "CodeMeasureKit",
      "targets" : [
        "CodeMeasureKit"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "CodeMeasureKit",
      "module_type" : "SwiftTarget",
      "name" : "CodeMeasureKit",
      "path" : "Sources/CodeMeasureKit",
      "product_memberships" : [
        "CodeMeasureKit"
      ],
      "sources" : [
        "CodeMeasureKit.swift",
        "UnfairQueue.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.9"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "CodeMeasureKit"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme CodeMeasureKit -destination platform=macOS,arch=arm64
Command line invocation:
    /Applications/Xcode-16.3.0.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 CodeMeasureKit -destination platform=macOS,arch=arm64
Resolve Package Graph
Resolved source packages:
  CodeMeasureKit: /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 'CodeMeasureKit' in project 'CodeMeasureKit'
        ➜ Explicit dependency on target 'CodeMeasureKit' in project 'CodeMeasureKit'
    Target 'CodeMeasureKit' in project 'CodeMeasureKit' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ExecuteExternalTool /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -isysroot /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.4.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc --version
ExecuteExternalTool /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
Build description signature: f875601213755ac785b82944802fd431
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/f875601213755ac785b82944802fd431.xcbuilddata
ClangStatCache /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.4.sdk /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx15.4-24E241-8287b8f5db97e746a1562fbca0c9d29b.sdkstatcache
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.4.sdk -o /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx15.4-24E241-8287b8f5db97e746a1562fbca0c9d29b.sdkstatcache
SwiftDriver CodeMeasureKit normal arm64 com.apple.xcode.tools.swift.compiler (in target 'CodeMeasureKit' from project 'CodeMeasureKit')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftDriver -- /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -module-name CodeMeasureKit -Onone -enforce-exclusivity\=checked @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/Objects-normal/arm64/CodeMeasureKit.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DXcode -plugin-path /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -enable-experimental-feature DebugDescriptionMacro -sdk /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.4.sdk -target arm64-apple-macos10.14 -g -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -Xfrontend -serialize-debugging-options -enable-testing -index-store-path /Users/admin/builder/spi-builder-workspace/.derivedData/Index.noindex/DataStore -swift-version 5 -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -I /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -F /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx15.4-24E241-8287b8f5db97e746a1562fbca0c9d29b.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/Objects-normal/arm64/CodeMeasureKit-OutputFileMap.json -use-frontend-parseable-output -save-temps -no-color-diagnostics -serialize-diagnostics -emit-dependencies -emit-module -emit-module-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/Objects-normal/arm64/CodeMeasureKit.swiftmodule -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -package-name spi_builder_workspace -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/swift-overrides.hmap -emit-const-values -Xfrontend -const-gather-protocols-file -Xfrontend /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/Objects-normal/arm64/CodeMeasureKit_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -emit-objc-header -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/Objects-normal/arm64/CodeMeasureKit-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
SwiftCompile normal arm64 Compiling\ CodeMeasureKit.swift /Users/admin/builder/spi-builder-workspace/Sources/CodeMeasureKit/CodeMeasureKit.swift (in target 'CodeMeasureKit' from project 'CodeMeasureKit')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/CodeMeasureKit/CodeMeasureKit.swift (in target 'CodeMeasureKit' from project 'CodeMeasureKit')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftEmitModule normal arm64 Emitting\ module\ for\ CodeMeasureKit (in target 'CodeMeasureKit' from project 'CodeMeasureKit')
Failed frontend command:
/Applications/Xcode-16.3.0.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/CodeMeasureKit/CodeMeasureKit.swift /Users/admin/builder/spi-builder-workspace/Sources/CodeMeasureKit/UnfairQueue.swift -target arm64-apple-macos10.14 -Xllvm -aarch64-use-tbi -enable-objc-interop -sdk /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.4.sdk -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -I /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug -F /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/Frameworks -no-color-diagnostics -enable-testing -g -debug-info-format\=dwarf -dwarf-version\=4 -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -swift-version 5 -enforce-exclusivity\=checked -Onone -D SWIFT_PACKAGE -D DEBUG -D Xcode -serialize-debugging-options -const-gather-protocols-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/Objects-normal/arm64/CodeMeasureKit_const_extract_protocols.json -enable-experimental-feature DebugDescriptionMacro -empty-abi-descriptor -plugin-path /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -Xcc -working-directory -Xcc /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -resource-dir /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift -enable-anonymous-context-mangled-names -file-compilation-dir /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/macosx15.4-24E241-8287b8f5db97e746a1562fbca0c9d29b.sdkstatcache -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/swift-overrides.hmap -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -module-name CodeMeasureKit -package-name spi_builder_workspace -frontend-parseable-output -disable-clang-spi -target-sdk-version 15.4 -target-sdk-name macosx15.4 -external-plugin-path /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib/swift/host/plugins\#/Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/bin/swift-plugin-server -external-plugin-path /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/local/lib/swift/host/plugins\#/Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/bin/swift-plugin-server -in-process-plugin-server-path /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/libSwiftInProcPluginServer.dylib -plugin-path /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins -plugin-path /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/local/lib/swift/host/plugins -emit-module-doc-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/Objects-normal/arm64/CodeMeasureKit.swiftdoc -emit-module-source-info-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/Objects-normal/arm64/CodeMeasureKit.swiftsourceinfo -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/Objects-normal/arm64/CodeMeasureKit-Swift.h -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/Objects-normal/arm64/CodeMeasureKit-master-emit-module.dia -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/Objects-normal/arm64/CodeMeasureKit-master-emit-module.d -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/Objects-normal/arm64/CodeMeasureKit.swiftmodule -emit-abi-descriptor-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/CodeMeasureKit.build/Debug/CodeMeasureKit.build/Objects-normal/arm64/CodeMeasureKit.abi.json
EmitSwiftModule normal arm64 (in target 'CodeMeasureKit' from project 'CodeMeasureKit')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

/Users/admin/builder/spi-builder-workspace/Sources/CodeMeasureKit/CodeMeasureKit.swift:100:14: error: 'Logger' is only available in macOS 11.0 or newer
let logger = Logger(
             ^
/Users/admin/builder/spi-builder-workspace/Sources/CodeMeasureKit/CodeMeasureKit.swift:100:5: note: add @available attribute to enclosing let
let logger = Logger(
    ^
/Users/admin/builder/spi-builder-workspace/Sources/CodeMeasureKit/CodeMeasureKit.swift:119:30: error: 'AnyCancellable' is only available in macOS 10.15 or newer
    private var cancellable: AnyCancellable?
                             ^
/Users/admin/builder/spi-builder-workspace/Sources/CodeMeasureKit/CodeMeasureKit.swift:111:21: note: add @available attribute to enclosing class
private final class MeasureCallRateStorage: @unchecked Sendable {
                    ^
/Users/admin/builder/spi-builder-workspace/Sources/CodeMeasureKit/CodeMeasureKit.swift:293:26: error: 'PassthroughSubject' is only available in macOS 10.15 or newer
    private let subject: PassthroughSubject<TimeInterval, Never> = .init()
                         ^
/Users/admin/builder/spi-builder-workspace/Sources/CodeMeasureKit/CodeMeasureKit.swift:279:21: note: add @available attribute to enclosing class
private final class ExecutionTimeMeter {
                    ^
SwiftCompile normal arm64 Compiling\ UnfairQueue.swift /Users/admin/builder/spi-builder-workspace/Sources/CodeMeasureKit/UnfairQueue.swift (in target 'CodeMeasureKit' from project 'CodeMeasureKit')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/CodeMeasureKit/UnfairQueue.swift (in target 'CodeMeasureKit' from project 'CodeMeasureKit')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

--- xcodebuild: WARNING: Using the first of multiple matching destinations:
{ platform:macOS, arch:arm64, id:549ece7b4de711f0d79e2eea89c116d4caf6196b, name:My Mac }
{ platform:macOS, arch:arm64, variant:Mac Catalyst, id:549ece7b4de711f0d79e2eea89c116d4caf6196b, name:My Mac }
{ platform:macOS, arch:arm64, variant:DriverKit, id:549ece7b4de711f0d79e2eea89c116d4caf6196b, name:My Mac }
{ platform:macOS, arch:arm64, variant:Designed for [iPad,iPhone], id:549ece7b4de711f0d79e2eea89c116d4caf6196b, name:My Mac }
** BUILD FAILED **
The following build commands failed:
	SwiftEmitModule normal arm64 Emitting\ module\ for\ CodeMeasureKit (in target 'CodeMeasureKit' from project 'CodeMeasureKit')
	EmitSwiftModule normal arm64 (in target 'CodeMeasureKit' from project 'CodeMeasureKit')
	Building workspace spi-builder-workspace with scheme CodeMeasureKit
(3 failures)
BUILD FAILURE 6.1 macosXcodebuild