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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 Transmission, reference main (747deb), with Swift 5.10 for macOS (Xcode) using Xcode 15.4 on 28 Apr 2025 06:49:13 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-15.4.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme Transmission -destination platform=macOS,arch=arm64

Build Log

========================================
RunAll
========================================
Builder version: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/nathantannar4/Transmission.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/nathantannar4/Transmission
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 747debc 2.2.1
Cloned https://github.com/nathantannar4/Transmission.git
Revision (git rev-parse @):
747debcb016be47ba53cabf5862763688475b43e
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/nathantannar4/Transmission.git at main
========================================
Build
========================================
Selected platform:         macosXcodebuild
Swift version:             5.10
Building package at path:  $PWD
https://github.com/nathantannar4/Transmission.git
Command line invocation:
    /Applications/Xcode-15.4.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
User defaults from command line:
    IDEClonedSourcePackagesDirPathOverride = /Users/admin/builder/spi-builder-workspace/.dependencies
    IDEPackageSupportUseBuiltinSCM = YES
Resolve Package Graph
Fetching from https://github.com/nathantannar4/Engine
Fetching from https://github.com/swiftlang/swift-syntax
Creating working copy of package ‘swift-syntax’
Checking out 600.0.1 of package ‘swift-syntax’
Creating working copy of package ‘Engine’
Checking out 2.1.2 of package ‘Engine’
Resolved source packages:
  Transmission: /Users/admin/builder/spi-builder-workspace
  swift-syntax: https://github.com/swiftlang/swift-syntax @ 600.0.1
  Engine: https://github.com/nathantannar4/Engine @ 2.1.2
resolved source packages: Transmission, swift-syntax, Engine
{
  "dependencies" : [
    {
      "identity" : "engine",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "2.1.1",
            "upper_bound" : "3.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/nathantannar4/Engine"
    }
  ],
  "manifest_display_name" : "Transmission",
  "name" : "Transmission",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "13.0"
    },
    {
      "name" : "maccatalyst",
      "version" : "13.0"
    },
    {
      "name" : "visionos",
      "version" : "1.0"
    }
  ],
  "products" : [
    {
      "name" : "Transmission",
      "targets" : [
        "Transmission"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "Transmission",
      "module_type" : "SwiftTarget",
      "name" : "Transmission",
      "path" : "Sources/Transmission",
      "product_dependencies" : [
        "Engine"
      ],
      "product_memberships" : [
        "Transmission"
      ],
      "sources" : [
        "Sources/DestinationCoordinator.swift",
        "Sources/DestinationLink.swift",
        "Sources/DestinationLinkAdapter.swift",
        "Sources/DestinationLinkModifier.swift",
        "Sources/DestinationLinkTransition.swift",
        "Sources/DestinationLinkTransitionRepresentable.swift",
        "Sources/DestinationSourceViewLink.swift",
        "Sources/DismissPresentationLink.swift",
        "Sources/DynamicProperty/WeakState.swift",
        "Sources/Extensions/Animation+Extensions.swift",
        "Sources/Extensions/CGAffineTransform+Extensions.swift",
        "Sources/Extensions/CGRect+Extensions.swift",
        "Sources/Extensions/UIColor+Extensions.swift",
        "Sources/Extensions/UIGestureRecognizer+Extensions.swift",
        "Sources/Extensions/UIKit+Extensions.swift",
        "Sources/Extensions/UINavigationController+Extensions.swift",
        "Sources/Extensions/UIScreen+Extensions.swift",
        "Sources/Extensions/UISheetPresentationController+Extensions.swift",
        "Sources/Extensions/UISplitViewController+Extensions.swift",
        "Sources/Extensions/UIView+Extensions.swift",
        "Sources/Extensions/UIViewController+Extensions.swift",
        "Sources/Extensions/UIWindow+Extensions.swift",
        "Sources/Hosting/AnyHostingView.swift",
        "Sources/Hosting/DestinationHostingController.swift",
        "Sources/Hosting/PresentationHostingController.swift",
        "Sources/Hosting/PresentationHostingWindow.swift",
        "Sources/Hosting/SnapshotRenderer.swift",
        "Sources/Presentation Controllers/CardPresentationController.swift",
        "Sources/Presentation Controllers/InteractivePresentationController.swift",
        "Sources/Presentation Controllers/MatchedGeometryPresentationController.swift",
        "Sources/Presentation Controllers/PopoverPresentationController.swift",
        "Sources/Presentation Controllers/PresentationController.swift",
        "Sources/Presentation Controllers/PresentationControllerTransition.swift",
        "Sources/Presentation Controllers/SheetPresentationController.swift",
        "Sources/Presentation Controllers/SlidePresentationController.swift",
        "Sources/Presentation Controllers/ToastPresentationController.swift",
        "Sources/PresentationCoordinator.swift",
        "Sources/PresentationLink.swift",
        "Sources/PresentationLinkAdapter.swift",
        "Sources/PresentationLinkAsymmetricTransition.swift",
        "Sources/PresentationLinkModifier.swift",
        "Sources/PresentationLinkTransition.swift",
        "Sources/PresentationLinkTransitionRepresentable.swift",
        "Sources/PresentationSourceViewLink.swift",
        "Sources/QuickLookPreviewLink.swift",
        "Sources/ShareSheetLink.swift",
        "Sources/StatusBarModifier.swift",
        "Sources/Supporting Files/ObjCBox.swift",
        "Sources/Supporting Files/PortalView.swift",
        "Sources/Supporting Files/PresentationDelegate.swift",
        "Sources/Supporting Files/TransitionSourceView.swift",
        "Sources/Supporting Files/WindowReader.swift",
        "Sources/TransitionReader+AppearanceTransition .swift",
        "Sources/TransitionReader.swift",
        "Sources/ViewControllerReader.swift",
        "Sources/ViewControllerRepresentableAdapter.swift",
        "Sources/ViewRepresentableAdapter.swift",
        "Sources/WindowLink.swift",
        "Sources/WindowLinkModifier.swift",
        "Sources/WindowLinkTransition.swift",
        "module.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.9"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "Transmission"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-15.4.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme Transmission -destination platform=macOS,arch=arm64
Command line invocation:
    /Applications/Xcode-15.4.0.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 Transmission -destination platform=macOS,arch=arm64
User defaults from command line:
    IDEClonedSourcePackagesDirPathOverride = /Users/admin/builder/spi-builder-workspace/.dependencies
    IDEDerivedDataPathOverride = /Users/admin/builder/spi-builder-workspace/.derivedData
    IDEPackageSupportUseBuiltinSCM = YES
Resolve Package Graph
Resolved source packages:
  Transmission: /Users/admin/builder/spi-builder-workspace
  swift-syntax: https://github.com/swiftlang/swift-syntax @ 600.0.1
  Engine: https://github.com/nathantannar4/Engine @ 2.1.2
Prepare packages
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (6 targets)
    Target 'Transmission' in project 'Transmission'
        ➜ Explicit dependency on target 'Transmission' in project 'Transmission'
        ➜ Explicit dependency on target 'Engine' in project 'Engine'
    Target 'Transmission' in project 'Transmission'
        ➜ Explicit dependency on target 'Engine' in project 'Engine'
    Target 'Engine' in project 'Engine'
        ➜ Explicit dependency on target 'Engine' in project 'Engine'
        ➜ Explicit dependency on target 'EngineCoreC' in project 'Engine'
        ➜ Explicit dependency on target 'EngineCore' in project 'Engine'
    Target 'Engine' in project 'Engine'
        ➜ Explicit dependency on target 'EngineCoreC' in project 'Engine'
        ➜ Explicit dependency on target 'EngineCore' in project 'Engine'
    Target 'EngineCore' in project 'Engine'
        ➜ Explicit dependency on target 'EngineCoreC' in project 'Engine'
    Target 'EngineCoreC' in project 'Engine' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ExecuteExternalTool /Applications/Xcode-15.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -arch arm64 -isysroot /Applications/Xcode-15.4.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX14.5.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-15.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -v
ExecuteExternalTool /Applications/Xcode-15.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -isysroot /Applications/Xcode-15.4.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX14.5.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-15.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
Build description signature: c90b31f2ccf19c7800e2fdeb30f4545f
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/c90b31f2ccf19c7800e2fdeb30f4545f.xcbuilddata
error: The package product 'Engine' requires minimum platform version 10.15 for the macOS platform, but this target supports 10.13 (in target 'Transmission' from project 'Transmission')
--- xcodebuild: WARNING: Using the first of multiple matching destinations:
{ platform:macOS, arch:arm64, id:0000FE00-8C151E3703BE51BE, name:My Mac }
{ platform:macOS, arch:arm64, variant:Mac Catalyst, id:0000FE00-8C151E3703BE51BE, name:My Mac }
{ platform:macOS, arch:arm64, variant:DriverKit, id:0000FE00-8C151E3703BE51BE, name:My Mac }
{ platform:macOS, arch:arm64, variant:Designed for [iPad,iPhone], id:0000FE00-8C151E3703BE51BE, name:My Mac }
** BUILD FAILED **
Command line invocation:
    /Applications/Xcode-15.4.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
User defaults from command line:
    IDEClonedSourcePackagesDirPathOverride = /Users/admin/builder/spi-builder-workspace/.dependencies
    IDEPackageSupportUseBuiltinSCM = YES
Resolve Package Graph
Resolved source packages:
  Transmission: /Users/admin/builder/spi-builder-workspace
  Engine: https://github.com/nathantannar4/Engine @ 2.1.2
  swift-syntax: https://github.com/swiftlang/swift-syntax @ 600.0.1
resolved source packages: Transmission, Engine, swift-syntax
{
  "dependencies" : [
    {
      "identity" : "engine",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "2.1.1",
            "upper_bound" : "3.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/nathantannar4/Engine"
    }
  ],
  "manifest_display_name" : "Transmission",
  "name" : "Transmission",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "13.0"
    },
    {
      "name" : "maccatalyst",
      "version" : "13.0"
    },
    {
      "name" : "visionos",
      "version" : "1.0"
    }
  ],
  "products" : [
    {
      "name" : "Transmission",
      "targets" : [
        "Transmission"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "Transmission",
      "module_type" : "SwiftTarget",
      "name" : "Transmission",
      "path" : "Sources/Transmission",
      "product_dependencies" : [
        "Engine"
      ],
      "product_memberships" : [
        "Transmission"
      ],
      "sources" : [
        "Sources/DestinationCoordinator.swift",
        "Sources/DestinationLink.swift",
        "Sources/DestinationLinkAdapter.swift",
        "Sources/DestinationLinkModifier.swift",
        "Sources/DestinationLinkTransition.swift",
        "Sources/DestinationLinkTransitionRepresentable.swift",
        "Sources/DestinationSourceViewLink.swift",
        "Sources/DismissPresentationLink.swift",
        "Sources/DynamicProperty/WeakState.swift",
        "Sources/Extensions/Animation+Extensions.swift",
        "Sources/Extensions/CGAffineTransform+Extensions.swift",
        "Sources/Extensions/CGRect+Extensions.swift",
        "Sources/Extensions/UIColor+Extensions.swift",
        "Sources/Extensions/UIGestureRecognizer+Extensions.swift",
        "Sources/Extensions/UIKit+Extensions.swift",
        "Sources/Extensions/UINavigationController+Extensions.swift",
        "Sources/Extensions/UIScreen+Extensions.swift",
        "Sources/Extensions/UISheetPresentationController+Extensions.swift",
        "Sources/Extensions/UISplitViewController+Extensions.swift",
        "Sources/Extensions/UIView+Extensions.swift",
        "Sources/Extensions/UIViewController+Extensions.swift",
        "Sources/Extensions/UIWindow+Extensions.swift",
        "Sources/Hosting/AnyHostingView.swift",
        "Sources/Hosting/DestinationHostingController.swift",
        "Sources/Hosting/PresentationHostingController.swift",
        "Sources/Hosting/PresentationHostingWindow.swift",
        "Sources/Hosting/SnapshotRenderer.swift",
        "Sources/Presentation Controllers/CardPresentationController.swift",
        "Sources/Presentation Controllers/InteractivePresentationController.swift",
        "Sources/Presentation Controllers/MatchedGeometryPresentationController.swift",
        "Sources/Presentation Controllers/PopoverPresentationController.swift",
        "Sources/Presentation Controllers/PresentationController.swift",
        "Sources/Presentation Controllers/PresentationControllerTransition.swift",
        "Sources/Presentation Controllers/SheetPresentationController.swift",
        "Sources/Presentation Controllers/SlidePresentationController.swift",
        "Sources/Presentation Controllers/ToastPresentationController.swift",
        "Sources/PresentationCoordinator.swift",
        "Sources/PresentationLink.swift",
        "Sources/PresentationLinkAdapter.swift",
        "Sources/PresentationLinkAsymmetricTransition.swift",
        "Sources/PresentationLinkModifier.swift",
        "Sources/PresentationLinkTransition.swift",
        "Sources/PresentationLinkTransitionRepresentable.swift",
        "Sources/PresentationSourceViewLink.swift",
        "Sources/QuickLookPreviewLink.swift",
        "Sources/ShareSheetLink.swift",
        "Sources/StatusBarModifier.swift",
        "Sources/Supporting Files/ObjCBox.swift",
        "Sources/Supporting Files/PortalView.swift",
        "Sources/Supporting Files/PresentationDelegate.swift",
        "Sources/Supporting Files/TransitionSourceView.swift",
        "Sources/Supporting Files/WindowReader.swift",
        "Sources/TransitionReader+AppearanceTransition .swift",
        "Sources/TransitionReader.swift",
        "Sources/ViewControllerReader.swift",
        "Sources/ViewControllerRepresentableAdapter.swift",
        "Sources/ViewRepresentableAdapter.swift",
        "Sources/WindowLink.swift",
        "Sources/WindowLinkModifier.swift",
        "Sources/WindowLinkTransition.swift",
        "module.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.9"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "Transmission"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-15.4.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme Transmission -destination platform=macOS,arch=arm64
Command line invocation:
    /Applications/Xcode-15.4.0.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 Transmission -destination platform=macOS,arch=arm64
User defaults from command line:
    IDEClonedSourcePackagesDirPathOverride = /Users/admin/builder/spi-builder-workspace/.dependencies
    IDEDerivedDataPathOverride = /Users/admin/builder/spi-builder-workspace/.derivedData
    IDEPackageSupportUseBuiltinSCM = YES
Resolve Package Graph
Resolved source packages:
  Transmission: /Users/admin/builder/spi-builder-workspace
  swift-syntax: https://github.com/swiftlang/swift-syntax @ 600.0.1
  Engine: https://github.com/nathantannar4/Engine @ 2.1.2
Prepare packages
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (6 targets)
    Target 'Transmission' in project 'Transmission'
        ➜ Explicit dependency on target 'Transmission' in project 'Transmission'
        ➜ Explicit dependency on target 'Engine' in project 'Engine'
    Target 'Transmission' in project 'Transmission'
        ➜ Explicit dependency on target 'Engine' in project 'Engine'
    Target 'Engine' in project 'Engine'
        ➜ Explicit dependency on target 'Engine' in project 'Engine'
        ➜ Explicit dependency on target 'EngineCoreC' in project 'Engine'
        ➜ Explicit dependency on target 'EngineCore' in project 'Engine'
    Target 'Engine' in project 'Engine'
        ➜ Explicit dependency on target 'EngineCoreC' in project 'Engine'
        ➜ Explicit dependency on target 'EngineCore' in project 'Engine'
    Target 'EngineCore' in project 'Engine'
        ➜ Explicit dependency on target 'EngineCoreC' in project 'Engine'
    Target 'EngineCoreC' in project 'Engine' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ExecuteExternalTool /Applications/Xcode-15.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -arch arm64 -isysroot /Applications/Xcode-15.4.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX14.5.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-15.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -v
ExecuteExternalTool /Applications/Xcode-15.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -isysroot /Applications/Xcode-15.4.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX14.5.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-15.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
Build description signature: c90b31f2ccf19c7800e2fdeb30f4545f
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/c90b31f2ccf19c7800e2fdeb30f4545f.xcbuilddata
error: The package product 'Engine' requires minimum platform version 10.15 for the macOS platform, but this target supports 10.13 (in target 'Transmission' from project 'Transmission')
--- xcodebuild: WARNING: Using the first of multiple matching destinations:
{ platform:macOS, arch:arm64, id:0000FE00-8C151E3703BE51BE, name:My Mac }
{ platform:macOS, arch:arm64, variant:Mac Catalyst, id:0000FE00-8C151E3703BE51BE, name:My Mac }
{ platform:macOS, arch:arm64, variant:DriverKit, id:0000FE00-8C151E3703BE51BE, name:My Mac }
{ platform:macOS, arch:arm64, variant:Designed for [iPad,iPhone], id:0000FE00-8C151E3703BE51BE, name:My Mac }
** BUILD FAILED **
BUILD FAILURE 5.10 macosXcodebuild