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Track the adoption of Swift 6 strict concurrency checks for data race safety. How many packages are Ready for Swift 6?

Build Information

Failed to build Silica, reference master (16f8c2), with Swift 6.1 for macOS (Xcode) using Xcode 16.3 on 30 Apr 2025 03:44:40 UTC.

Build Command

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

Build Log

========================================
RunAll
========================================
Builder version: 4.61.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/pureswift/silica.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/pureswift/silica
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 16f8c29 Updated unit tests
Cloned https://github.com/pureswift/silica.git
Revision (git rev-parse @):
16f8c29153b2081f874bdd971a1228a6ec5c6cbf
SUCCESS checkout https://github.com/pureswift/silica.git at master
========================================
Build
========================================
Selected platform:         macosXcodebuild
Swift version:             6.1
Building package at path:  $PWD
https://github.com/pureswift/silica.git
https://github.com/pureswift/silica.git
{
  "dependencies" : [
    {
      "identity" : "cairo",
      "requirement" : {
        "branch" : [
          "master"
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/PureSwift/Cairo.git"
    },
    {
      "identity" : "fontconfig",
      "requirement" : {
        "branch" : [
          "master"
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/PureSwift/FontConfig.git"
    }
  ],
  "manifest_display_name" : "Silica",
  "name" : "Silica",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Silica",
      "targets" : [
        "Silica"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SilicaTests",
      "module_type" : "SwiftTarget",
      "name" : "SilicaTests",
      "path" : "Tests/SilicaTests",
      "sources" : [
        "FontTests.swift",
        "StyleKitTests.swift",
        "Utilities/Define.swift",
        "Utilities/TestAssets.swift",
        "Utilities/TestStyleKit.swift",
        "Utilities/URLClient.swift"
      ],
      "target_dependencies" : [
        "Silica"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Silica",
      "module_type" : "SwiftTarget",
      "name" : "Silica",
      "path" : "Sources/Silica",
      "product_dependencies" : [
        "Cairo",
        "FontConfig"
      ],
      "product_memberships" : [
        "Silica"
      ],
      "sources" : [
        "CGAffineTransform.swift",
        "CGBitmapInfo.swift",
        "CGColor.swift",
        "CGColorRenderingIntent.swift",
        "CGColorSpace.swift",
        "CGContext.swift",
        "CGDrawingMode.swift",
        "CGFont.swift",
        "CGImage.swift",
        "CGImageDestination.swift",
        "CGImageSource.swift",
        "CGImageSourcePNG.swift",
        "CGLineCap.swift",
        "CGLineJoin.swift",
        "CGPath.swift",
        "CairoConvertible.swift",
        "UIKit/NSStringDrawing.swift",
        "UIKit/UIBezierPath.swift",
        "UIKit/UIColor.swift",
        "UIKit/UIFont.swift",
        "UIKit/UIGraphics.swift",
        "UIKit/UIImage.swift",
        "UIKit/UIRectCorner.swift",
        "UIKit/UIViewContentMode.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "6.0"
}
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
Fetching from https://github.com/PureSwift/Cairo.git
Fetching from https://github.com/PureSwift/FontConfig.git
Creating working copy of package ‘Cairo’
Checking out master (646b210) of package ‘Cairo’
Creating working copy of package ‘FontConfig’
Checking out master (02b7b62) of package ‘FontConfig’
failed to retrieve search paths with pkg-config; maybe pkg-config is not installedyou may be able to install cairo using your system-packager:
    brew install cairo
you may be able to install freetype using your system-packager:
    brew install freetype2
you may be able to install fontconfig using your system-packager:
    brew install fontconfig
Resolve Package Graph
you may be able to install cairo using your system-packager:
    brew install cairo
you may be able to install freetype using your system-packager:
    brew install freetype2
you may be able to install fontconfig using your system-packager:
    brew install fontconfig
Resolved source packages:
  Silica: /Users/admin/builder/spi-builder-workspace
  Cairo: https://github.com/PureSwift/Cairo.git @ master (646b210)
  FontConfig: https://github.com/PureSwift/FontConfig.git @ master (02b7b62)
resolved source packages: Silica, Cairo, FontConfig
{
  "dependencies" : [
    {
      "identity" : "cairo",
      "requirement" : {
        "branch" : [
          "master"
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/PureSwift/Cairo.git"
    },
    {
      "identity" : "fontconfig",
      "requirement" : {
        "branch" : [
          "master"
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/PureSwift/FontConfig.git"
    }
  ],
  "manifest_display_name" : "Silica",
  "name" : "Silica",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Silica",
      "targets" : [
        "Silica"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SilicaTests",
      "module_type" : "SwiftTarget",
      "name" : "SilicaTests",
      "path" : "Tests/SilicaTests",
      "sources" : [
        "FontTests.swift",
        "StyleKitTests.swift",
        "Utilities/Define.swift",
        "Utilities/TestAssets.swift",
        "Utilities/TestStyleKit.swift",
        "Utilities/URLClient.swift"
      ],
      "target_dependencies" : [
        "Silica"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Silica",
      "module_type" : "SwiftTarget",
      "name" : "Silica",
      "path" : "Sources/Silica",
      "product_dependencies" : [
        "Cairo",
        "FontConfig"
      ],
      "product_memberships" : [
        "Silica"
      ],
      "sources" : [
        "CGAffineTransform.swift",
        "CGBitmapInfo.swift",
        "CGColor.swift",
        "CGColorRenderingIntent.swift",
        "CGColorSpace.swift",
        "CGContext.swift",
        "CGDrawingMode.swift",
        "CGFont.swift",
        "CGImage.swift",
        "CGImageDestination.swift",
        "CGImageSource.swift",
        "CGImageSourcePNG.swift",
        "CGLineCap.swift",
        "CGLineJoin.swift",
        "CGPath.swift",
        "CairoConvertible.swift",
        "UIKit/NSStringDrawing.swift",
        "UIKit/UIBezierPath.swift",
        "UIKit/UIColor.swift",
        "UIKit/UIFont.swift",
        "UIKit/UIGraphics.swift",
        "UIKit/UIImage.swift",
        "UIKit/UIRectCorner.swift",
        "UIKit/UIViewContentMode.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "6.0"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "Silica"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme Silica -destination platform=macOS,arch=arm64 OTHER_SWIFT_FLAGS=-stats-output-dir .stats
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 Silica -destination platform=macOS,arch=arm64 "OTHER_SWIFT_FLAGS=-stats-output-dir .stats"
Build settings from command line:
    OTHER_SWIFT_FLAGS = -stats-output-dir .stats
Resolve Package Graph
you may be able to install fontconfig using your system-packager:
    brew install fontconfig
failed to retrieve search paths with pkg-config; maybe pkg-config is not installedyou may be able to install cairo using your system-packager:
    brew install cairo
you may be able to install freetype using your system-packager:
    brew install freetype2
Resolve Package Graph
you may be able to install fontconfig using your system-packager:
    brew install fontconfig
you may be able to install cairo using your system-packager:
    brew install cairo
you may be able to install freetype using your system-packager:
    brew install freetype2
Resolved source packages:
  Cairo: https://github.com/PureSwift/Cairo.git @ master (646b210)
  FontConfig: https://github.com/PureSwift/FontConfig.git @ master (02b7b62)
  Silica: /Users/admin/builder/spi-builder-workspace
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (9 targets)
    Target 'Silica' in project 'Silica'
        ➜ Explicit dependency on target 'Silica' in project 'Silica'
        ➜ Explicit dependency on target 'Cairo' in project 'Cairo'
        ➜ Explicit dependency on target 'FontConfig' in project 'FontConfig'
    Target 'Silica' in project 'Silica'
        ➜ Explicit dependency on target 'Cairo' in project 'Cairo'
        ➜ Explicit dependency on target 'FontConfig' in project 'FontConfig'
    Target 'Cairo' in project 'Cairo'
        ➜ Explicit dependency on target 'Cairo' in project 'Cairo'
        ➜ Explicit dependency on target 'FontConfig' in project 'FontConfig'
    Target 'Cairo' in project 'Cairo'
        ➜ Explicit dependency on target 'CCairo' in project 'Cairo'
        ➜ Explicit dependency on target 'CFreeType' in project 'Cairo'
        ➜ Explicit dependency on target 'FontConfig' in project 'FontConfig'
    Target 'FontConfig' in project 'FontConfig'
        ➜ Explicit dependency on target 'FontConfig' in project 'FontConfig'
    Target 'FontConfig' in project 'FontConfig'
        ➜ Explicit dependency on target 'CFontConfig' in project 'FontConfig'
    Target 'CFontConfig' in project 'FontConfig' (no dependencies)
    Target 'CFreeType' in project 'Cairo' (no dependencies)
    Target 'CCairo' in project 'Cairo' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
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/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/ld -version_details
Build description signature: 43ef09220026f326bdc7dc7b7a5bdd84
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/43ef09220026f326bdc7dc7b7a5bdd84.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
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
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/Silica.build/Debug/Silica.build/Silica.DependencyMetadataFileList (in target 'Silica' from project 'Silica')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Silica.build/Debug/Silica.build/Silica.DependencyMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Silica.build/Debug/Silica.build/Silica.modulemap (in target 'Silica' from project 'Silica')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Silica.build/Debug/Silica.build/Silica.modulemap
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Silica.build/Debug/Silica.build/Silica.DependencyStaticMetadataFileList (in target 'Silica' from project 'Silica')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Silica.build/Debug/Silica.build/Silica.DependencyStaticMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Silica.build/Debug/Silica.build/Objects-normal/arm64/Silica_const_extract_protocols.json (in target 'Silica' from project 'Silica')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Silica.build/Debug/Silica.build/Objects-normal/arm64/Silica_const_extract_protocols.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Silica.build/Debug/Silica.build/Objects-normal/arm64/Silica.SwiftFileList (in target 'Silica' from project 'Silica')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Silica.build/Debug/Silica.build/Objects-normal/arm64/Silica.SwiftFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Silica.build/Debug/Silica.build/Objects-normal/arm64/Silica-OutputFileMap.json (in target 'Silica' from project 'Silica')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Silica.build/Debug/Silica.build/Objects-normal/arm64/Silica-OutputFileMap.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Silica.build/Debug/Silica.build/Objects-normal/arm64/Silica.LinkFileList (in target 'Silica' from project 'Silica')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Silica.build/Debug/Silica.build/Objects-normal/arm64/Silica.LinkFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Silica.build/Debug/Silica.build/Objects-normal/arm64/Silica.SwiftConstValuesFileList (in target 'Silica' from project 'Silica')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Silica.build/Debug/Silica.build/Objects-normal/arm64/Silica.SwiftConstValuesFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/FontConfig.build/Debug/FontConfig.build/Objects-normal/arm64/FontConfig_const_extract_protocols.json (in target 'FontConfig' from project 'FontConfig')
    cd /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/FontConfig
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/FontConfig.build/Debug/FontConfig.build/Objects-normal/arm64/FontConfig_const_extract_protocols.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/FontConfig.build/Debug/FontConfig.build/Objects-normal/arm64/FontConfig.SwiftFileList (in target 'FontConfig' from project 'FontConfig')
    cd /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/FontConfig
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/FontConfig.build/Debug/FontConfig.build/Objects-normal/arm64/FontConfig.SwiftFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/FontConfig.build/Debug/FontConfig.build/Objects-normal/arm64/FontConfig.SwiftConstValuesFileList (in target 'FontConfig' from project 'FontConfig')
    cd /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/FontConfig
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/FontConfig.build/Debug/FontConfig.build/Objects-normal/arm64/FontConfig.SwiftConstValuesFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/FontConfig.build/Debug/FontConfig.build/Objects-normal/arm64/FontConfig.LinkFileList (in target 'FontConfig' from project 'FontConfig')
    cd /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/FontConfig
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/FontConfig.build/Debug/FontConfig.build/Objects-normal/arm64/FontConfig.LinkFileList
Copy /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps/Silica.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Silica.build/Debug/Silica.build/Silica.modulemap (in target 'Silica' from project 'Silica')
    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/Silica.build/Debug/Silica.build/Silica.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/FontConfig.build/Debug/FontConfig.build/Objects-normal/arm64/FontConfig-OutputFileMap.json (in target 'FontConfig' from project 'FontConfig')
    cd /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/FontConfig
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/FontConfig.build/Debug/FontConfig.build/Objects-normal/arm64/FontConfig-OutputFileMap.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/FontConfig.build/Debug/FontConfig.build/FontConfig.modulemap (in target 'FontConfig' from project 'FontConfig')
    cd /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/FontConfig
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/FontConfig.build/Debug/FontConfig.build/FontConfig.modulemap
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/FontConfig.build/Debug/FontConfig.build/FontConfig.DependencyStaticMetadataFileList (in target 'FontConfig' from project 'FontConfig')
    cd /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/FontConfig
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/FontConfig.build/Debug/FontConfig.build/FontConfig.DependencyStaticMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/FontConfig.build/Debug/FontConfig.build/FontConfig.DependencyMetadataFileList (in target 'FontConfig' from project 'FontConfig')
    cd /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/FontConfig
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/FontConfig.build/Debug/FontConfig.build/FontConfig.DependencyMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Cairo.build/Debug/Cairo.build/Objects-normal/arm64/Cairo_const_extract_protocols.json (in target 'Cairo' from project 'Cairo')
    cd /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/Cairo
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Cairo.build/Debug/Cairo.build/Objects-normal/arm64/Cairo_const_extract_protocols.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Cairo.build/Debug/Cairo.build/Objects-normal/arm64/Cairo.SwiftFileList (in target 'Cairo' from project 'Cairo')
    cd /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/Cairo
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Cairo.build/Debug/Cairo.build/Objects-normal/arm64/Cairo.SwiftFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Cairo.build/Debug/Cairo.build/Objects-normal/arm64/Cairo.SwiftConstValuesFileList (in target 'Cairo' from project 'Cairo')
    cd /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/Cairo
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Cairo.build/Debug/Cairo.build/Objects-normal/arm64/Cairo.SwiftConstValuesFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Cairo.build/Debug/Cairo.build/Objects-normal/arm64/Cairo.LinkFileList (in target 'Cairo' from project 'Cairo')
    cd /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/Cairo
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Cairo.build/Debug/Cairo.build/Objects-normal/arm64/Cairo.LinkFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Cairo.build/Debug/Cairo.build/Objects-normal/arm64/Cairo-OutputFileMap.json (in target 'Cairo' from project 'Cairo')
    cd /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/Cairo
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Cairo.build/Debug/Cairo.build/Objects-normal/arm64/Cairo-OutputFileMap.json
Copy /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps/FontConfig.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/FontConfig.build/Debug/FontConfig.build/FontConfig.modulemap (in target 'FontConfig' from project 'FontConfig')
    cd /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/FontConfig
    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/FontConfig.build/Debug/FontConfig.build/FontConfig.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Cairo.build/Debug/Cairo.build/Cairo.modulemap (in target 'Cairo' from project 'Cairo')
    cd /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/Cairo
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Cairo.build/Debug/Cairo.build/Cairo.modulemap
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Cairo.build/Debug/Cairo.build/Cairo.DependencyStaticMetadataFileList (in target 'Cairo' from project 'Cairo')
    cd /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/Cairo
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Cairo.build/Debug/Cairo.build/Cairo.DependencyStaticMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Cairo.build/Debug/Cairo.build/Cairo.DependencyMetadataFileList (in target 'Cairo' from project 'Cairo')
    cd /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/Cairo
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Cairo.build/Debug/Cairo.build/Cairo.DependencyMetadataFileList
Copy /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps/Cairo.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/Cairo.build/Debug/Cairo.build/Cairo.modulemap (in target 'Cairo' from project 'Cairo')
    cd /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/Cairo
    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/Cairo.build/Debug/Cairo.build/Cairo.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps
SwiftDriver FontConfig normal arm64 com.apple.xcode.tools.swift.compiler (in target 'FontConfig' from project 'FontConfig')
    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 FontConfig -Onone -enforce-exclusivity\=checked @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/FontConfig.build/Debug/FontConfig.build/Objects-normal/arm64/FontConfig.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -Xcc -fmodule-map-file\=/Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/FontConfig/Sources/CFontConfig/module.modulemap -stats-output-dir .stats -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-macos10.13 -g -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -Xfrontend -serialize-debugging-options -profile-coverage-mapping -profile-generate -enable-testing -suppress-warnings -index-store-path /Users/admin/builder/spi-builder-workspace/.derivedData/Index.noindex/DataStore -swift-version 6 -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/FontConfig.build/Debug/FontConfig.build/Objects-normal/arm64/FontConfig-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/FontConfig.build/Debug/FontConfig.build/Objects-normal/arm64/FontConfig.swiftmodule -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -package-name fontconfig -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/FontConfig.build/Debug/FontConfig.build/swift-overrides.hmap -emit-const-values -Xfrontend -const-gather-protocols-file -Xfrontend /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/FontConfig.build/Debug/FontConfig.build/Objects-normal/arm64/FontConfig_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/FontConfig.build/Debug/FontConfig.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/FontConfig.build/Debug/FontConfig.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/FontConfig.build/Debug/FontConfig.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/FontConfig.build/Debug/FontConfig.build/Objects-normal/arm64/FontConfig-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
SwiftEmitModule normal arm64 Emitting\ module\ for\ FontConfig (in target 'FontConfig' from project 'FontConfig')
EmitSwiftModule normal arm64 (in target 'FontConfig' from project 'FontConfig')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

<module-includes>:1:9: note: in file included from <module-includes>:1:
#import "shim.h"
        ^
/Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/FontConfig/Sources/CFontConfig/shim.h:1:10: error: 'fontconfig/fontconfig.h' file not found
#include <fontconfig/fontconfig.h>
         ^
/Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/FontConfig/Sources/FontConfig/FontConfig.swift:8:8: error: could not build Objective-C module 'CFontConfig'
import CFontConfig
       ^
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/.dependencies/checkouts/FontConfig/Sources/FontConfig/FontConfig.swift /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/FontConfig/Sources/FontConfig/FontSlant.swift /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/FontConfig/Sources/FontConfig/FontWeight.swift /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/FontConfig/Sources/FontConfig/FontWidth.swift /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/FontConfig/Sources/FontConfig/Pattern.swift -target arm64-apple-macos10.13 -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 -suppress-warnings -profile-generate -profile-coverage-mapping -swift-version 6 -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/FontConfig.build/Debug/FontConfig.build/Objects-normal/arm64/FontConfig_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 -fmodule-map-file\=/Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/FontConfig/Sources/CFontConfig/module.modulemap -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/FontConfig.build/Debug/FontConfig.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/FontConfig.build/Debug/FontConfig.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/FontConfig.build/Debug/FontConfig.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/FontConfig.build/Debug/FontConfig.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -module-name FontConfig -package-name fontconfig -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/FontConfig.build/Debug/FontConfig.build/Objects-normal/arm64/FontConfig.swiftdoc -emit-module-source-info-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/FontConfig.build/Debug/FontConfig.build/Objects-normal/arm64/FontConfig.swiftsourceinfo -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/FontConfig.build/Debug/FontConfig.build/Objects-normal/arm64/FontConfig-Swift.h -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/FontConfig.build/Debug/FontConfig.build/Objects-normal/arm64/FontConfig-master-emit-module.dia -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/FontConfig.build/Debug/FontConfig.build/Objects-normal/arm64/FontConfig-master-emit-module.d -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/FontConfig.build/Debug/FontConfig.build/Objects-normal/arm64/FontConfig.swiftmodule -emit-abi-descriptor-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/FontConfig.build/Debug/FontConfig.build/Objects-normal/arm64/FontConfig.abi.json
SwiftCompile normal arm64 Compiling\ FontWidth.swift /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/FontConfig/Sources/FontConfig/FontWidth.swift (in target 'FontConfig' from project 'FontConfig')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/FontConfig/Sources/FontConfig/FontWidth.swift (in target 'FontConfig' from project 'FontConfig')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 Compiling\ Pattern.swift /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/FontConfig/Sources/FontConfig/Pattern.swift (in target 'FontConfig' from project 'FontConfig')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/FontConfig/Sources/FontConfig/Pattern.swift (in target 'FontConfig' from project 'FontConfig')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 Compiling\ FontSlant.swift /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/FontConfig/Sources/FontConfig/FontSlant.swift (in target 'FontConfig' from project 'FontConfig')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/FontConfig/Sources/FontConfig/FontSlant.swift (in target 'FontConfig' from project 'FontConfig')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 Compiling\ FontConfig.swift /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/FontConfig/Sources/FontConfig/FontConfig.swift (in target 'FontConfig' from project 'FontConfig')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/FontConfig/Sources/FontConfig/FontConfig.swift (in target 'FontConfig' from project 'FontConfig')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 Compiling\ FontWeight.swift /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/FontConfig/Sources/FontConfig/FontWeight.swift (in target 'FontConfig' from project 'FontConfig')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/FontConfig/Sources/FontConfig/FontWeight.swift (in target 'FontConfig' from project 'FontConfig')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

--- xcodebuild: WARNING: Using the first of multiple matching destinations:
{ platform:macOS, arch:arm64, id:b18ccd2f3f659a9092088653ab2189e8437fba7a, name:My Mac }
{ platform:macOS, arch:arm64, variant:Mac Catalyst, id:b18ccd2f3f659a9092088653ab2189e8437fba7a, name:My Mac }
{ platform:macOS, arch:arm64, variant:DriverKit, id:b18ccd2f3f659a9092088653ab2189e8437fba7a, name:My Mac }
{ platform:macOS, arch:arm64, variant:Designed for [iPad,iPhone], id:b18ccd2f3f659a9092088653ab2189e8437fba7a, name:My Mac }
** BUILD FAILED **
The following build commands failed:
	EmitSwiftModule normal arm64 (in target 'FontConfig' from project 'FontConfig')
	SwiftEmitModule normal arm64 Emitting\ module\ for\ FontConfig (in target 'FontConfig' from project 'FontConfig')
	Building workspace spi-builder-workspace with scheme Silica
(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
failed to retrieve search paths with pkg-config; maybe pkg-config is not installedyou may be able to install cairo using your system-packager:
    brew install cairo
you may be able to install freetype using your system-packager:
    brew install freetype2
you may be able to install fontconfig using your system-packager:
    brew install fontconfig
Resolved source packages:
  Cairo: https://github.com/PureSwift/Cairo.git @ master (646b210)
  Silica: /Users/admin/builder/spi-builder-workspace
  FontConfig: https://github.com/PureSwift/FontConfig.git @ master (02b7b62)
resolved source packages: Cairo, Silica, FontConfig
{
  "dependencies" : [
    {
      "identity" : "cairo",
      "requirement" : {
        "branch" : [
          "master"
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/PureSwift/Cairo.git"
    },
    {
      "identity" : "fontconfig",
      "requirement" : {
        "branch" : [
          "master"
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/PureSwift/FontConfig.git"
    }
  ],
  "manifest_display_name" : "Silica",
  "name" : "Silica",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Silica",
      "targets" : [
        "Silica"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SilicaTests",
      "module_type" : "SwiftTarget",
      "name" : "SilicaTests",
      "path" : "Tests/SilicaTests",
      "sources" : [
        "FontTests.swift",
        "StyleKitTests.swift",
        "Utilities/Define.swift",
        "Utilities/TestAssets.swift",
        "Utilities/TestStyleKit.swift",
        "Utilities/URLClient.swift"
      ],
      "target_dependencies" : [
        "Silica"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Silica",
      "module_type" : "SwiftTarget",
      "name" : "Silica",
      "path" : "Sources/Silica",
      "product_dependencies" : [
        "Cairo",
        "FontConfig"
      ],
      "product_memberships" : [
        "Silica"
      ],
      "sources" : [
        "CGAffineTransform.swift",
        "CGBitmapInfo.swift",
        "CGColor.swift",
        "CGColorRenderingIntent.swift",
        "CGColorSpace.swift",
        "CGContext.swift",
        "CGDrawingMode.swift",
        "CGFont.swift",
        "CGImage.swift",
        "CGImageDestination.swift",
        "CGImageSource.swift",
        "CGImageSourcePNG.swift",
        "CGLineCap.swift",
        "CGLineJoin.swift",
        "CGPath.swift",
        "CairoConvertible.swift",
        "UIKit/NSStringDrawing.swift",
        "UIKit/UIBezierPath.swift",
        "UIKit/UIColor.swift",
        "UIKit/UIFont.swift",
        "UIKit/UIGraphics.swift",
        "UIKit/UIImage.swift",
        "UIKit/UIRectCorner.swift",
        "UIKit/UIViewContentMode.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "6.0"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "Silica"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme Silica -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 Silica -destination platform=macOS,arch=arm64
Resolve Package Graph
failed to retrieve search paths with pkg-config; maybe pkg-config is not installedyou may be able to install cairo using your system-packager:
    brew install cairo
you may be able to install freetype using your system-packager:
    brew install freetype2
you may be able to install fontconfig using your system-packager:
    brew install fontconfig
Resolved source packages:
  FontConfig: https://github.com/PureSwift/FontConfig.git @ master (02b7b62)
  Cairo: https://github.com/PureSwift/Cairo.git @ master (646b210)
  Silica: /Users/admin/builder/spi-builder-workspace
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (9 targets)
    Target 'Silica' in project 'Silica'
        ➜ Explicit dependency on target 'Silica' in project 'Silica'
        ➜ Explicit dependency on target 'Cairo' in project 'Cairo'
        ➜ Explicit dependency on target 'FontConfig' in project 'FontConfig'
    Target 'Silica' in project 'Silica'
        ➜ Explicit dependency on target 'Cairo' in project 'Cairo'
        ➜ Explicit dependency on target 'FontConfig' in project 'FontConfig'
    Target 'Cairo' in project 'Cairo'
        ➜ Explicit dependency on target 'Cairo' in project 'Cairo'
        ➜ Explicit dependency on target 'FontConfig' in project 'FontConfig'
    Target 'Cairo' in project 'Cairo'
        ➜ Explicit dependency on target 'CCairo' in project 'Cairo'
        ➜ Explicit dependency on target 'CFreeType' in project 'Cairo'
        ➜ Explicit dependency on target 'FontConfig' in project 'FontConfig'
    Target 'FontConfig' in project 'FontConfig'
        ➜ Explicit dependency on target 'FontConfig' in project 'FontConfig'
    Target 'FontConfig' in project 'FontConfig'
        ➜ Explicit dependency on target 'CFontConfig' in project 'FontConfig'
    Target 'CFontConfig' in project 'FontConfig' (no dependencies)
    Target 'CFreeType' in project 'Cairo' (no dependencies)
    Target 'CCairo' in project 'Cairo' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
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/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/ld -version_details
Build description signature: 94786b9623e09838c6f9883618b23ad5
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/94786b9623e09838c6f9883618b23ad5.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 FontConfig normal arm64 com.apple.xcode.tools.swift.compiler (in target 'FontConfig' from project 'FontConfig')
    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 FontConfig -Onone -enforce-exclusivity\=checked @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/FontConfig.build/Debug/FontConfig.build/Objects-normal/arm64/FontConfig.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -Xcc -fmodule-map-file\=/Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/FontConfig/Sources/CFontConfig/module.modulemap -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-macos10.13 -g -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -Xfrontend -serialize-debugging-options -profile-coverage-mapping -profile-generate -enable-testing -suppress-warnings -index-store-path /Users/admin/builder/spi-builder-workspace/.derivedData/Index.noindex/DataStore -swift-version 6 -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/FontConfig.build/Debug/FontConfig.build/Objects-normal/arm64/FontConfig-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/FontConfig.build/Debug/FontConfig.build/Objects-normal/arm64/FontConfig.swiftmodule -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -package-name fontconfig -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/FontConfig.build/Debug/FontConfig.build/swift-overrides.hmap -emit-const-values -Xfrontend -const-gather-protocols-file -Xfrontend /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/FontConfig.build/Debug/FontConfig.build/Objects-normal/arm64/FontConfig_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/FontConfig.build/Debug/FontConfig.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/FontConfig.build/Debug/FontConfig.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/FontConfig.build/Debug/FontConfig.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/FontConfig.build/Debug/FontConfig.build/Objects-normal/arm64/FontConfig-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
SwiftCompile normal arm64 Compiling\ FontSlant.swift /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/FontConfig/Sources/FontConfig/FontSlant.swift (in target 'FontConfig' from project 'FontConfig')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/FontConfig/Sources/FontConfig/FontSlant.swift (in target 'FontConfig' from project 'FontConfig')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 Compiling\ Pattern.swift /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/FontConfig/Sources/FontConfig/Pattern.swift (in target 'FontConfig' from project 'FontConfig')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/FontConfig/Sources/FontConfig/Pattern.swift (in target 'FontConfig' from project 'FontConfig')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftEmitModule normal arm64 Emitting\ module\ for\ FontConfig (in target 'FontConfig' from project 'FontConfig')
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/.dependencies/checkouts/FontConfig/Sources/FontConfig/FontConfig.swift /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/FontConfig/Sources/FontConfig/FontSlant.swift /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/FontConfig/Sources/FontConfig/FontWeight.swift /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/FontConfig/Sources/FontConfig/FontWidth.swift /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/FontConfig/Sources/FontConfig/Pattern.swift -target arm64-apple-macos10.13 -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 -suppress-warnings -profile-generate -profile-coverage-mapping -swift-version 6 -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/FontConfig.build/Debug/FontConfig.build/Objects-normal/arm64/FontConfig_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 -fmodule-map-file\=/Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/FontConfig/Sources/CFontConfig/module.modulemap -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/FontConfig.build/Debug/FontConfig.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/FontConfig.build/Debug/FontConfig.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/FontConfig.build/Debug/FontConfig.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/FontConfig.build/Debug/FontConfig.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -module-name FontConfig -package-name fontconfig -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/FontConfig.build/Debug/FontConfig.build/Objects-normal/arm64/FontConfig.swiftdoc -emit-module-source-info-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/FontConfig.build/Debug/FontConfig.build/Objects-normal/arm64/FontConfig.swiftsourceinfo -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/FontConfig.build/Debug/FontConfig.build/Objects-normal/arm64/FontConfig-Swift.h -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/FontConfig.build/Debug/FontConfig.build/Objects-normal/arm64/FontConfig-master-emit-module.dia -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/FontConfig.build/Debug/FontConfig.build/Objects-normal/arm64/FontConfig-master-emit-module.d -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/FontConfig.build/Debug/FontConfig.build/Objects-normal/arm64/FontConfig.swiftmodule -emit-abi-descriptor-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/FontConfig.build/Debug/FontConfig.build/Objects-normal/arm64/FontConfig.abi.json
EmitSwiftModule normal arm64 (in target 'FontConfig' from project 'FontConfig')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

<module-includes>:1:9: note: in file included from <module-includes>:1:
#import "shim.h"
        ^
/Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/FontConfig/Sources/CFontConfig/shim.h:1:10: error: 'fontconfig/fontconfig.h' file not found
#include <fontconfig/fontconfig.h>
         ^
/Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/FontConfig/Sources/FontConfig/FontConfig.swift:8:8: error: could not build Objective-C module 'CFontConfig'
import CFontConfig
       ^
SwiftCompile normal arm64 Compiling\ FontWidth.swift /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/FontConfig/Sources/FontConfig/FontWidth.swift (in target 'FontConfig' from project 'FontConfig')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/FontConfig/Sources/FontConfig/FontWidth.swift (in target 'FontConfig' from project 'FontConfig')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 Compiling\ FontConfig.swift /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/FontConfig/Sources/FontConfig/FontConfig.swift (in target 'FontConfig' from project 'FontConfig')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/FontConfig/Sources/FontConfig/FontConfig.swift (in target 'FontConfig' from project 'FontConfig')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 Compiling\ FontWeight.swift /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/FontConfig/Sources/FontConfig/FontWeight.swift (in target 'FontConfig' from project 'FontConfig')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/.dependencies/checkouts/FontConfig/Sources/FontConfig/FontWeight.swift (in target 'FontConfig' from project 'FontConfig')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

--- xcodebuild: WARNING: Using the first of multiple matching destinations:
{ platform:macOS, arch:arm64, id:b18ccd2f3f659a9092088653ab2189e8437fba7a, name:My Mac }
{ platform:macOS, arch:arm64, variant:Mac Catalyst, id:b18ccd2f3f659a9092088653ab2189e8437fba7a, name:My Mac }
{ platform:macOS, arch:arm64, variant:DriverKit, id:b18ccd2f3f659a9092088653ab2189e8437fba7a, name:My Mac }
{ platform:macOS, arch:arm64, variant:Designed for [iPad,iPhone], id:b18ccd2f3f659a9092088653ab2189e8437fba7a, name:My Mac }
** BUILD FAILED **
The following build commands failed:
	SwiftEmitModule normal arm64 Emitting\ module\ for\ FontConfig (in target 'FontConfig' from project 'FontConfig')
	EmitSwiftModule normal arm64 (in target 'FontConfig' from project 'FontConfig')
	Building workspace spi-builder-workspace with scheme Silica
(3 failures)
BUILD FAILURE 6.1 macosXcodebuild