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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 Builder, reference main (778668), with Swift 6.1 for watchOS using Xcode 16.3 on 26 Apr 2025 10:45:23 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme Builder-Package -destination generic/platform=watchOS

Build Log

========================================
RunAll
========================================
Builder version: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/elegantchaos/Builder.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/elegantchaos/Builder
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 778668b Update README.md
Cloned https://github.com/elegantchaos/Builder.git
Revision (git rev-parse @):
778668bb58d0bdc85dfb2027219bd538e9a8ffc0
SUCCESS checkout https://github.com/elegantchaos/Builder.git at main
========================================
Build
========================================
Selected platform:         watchOS
Swift version:             6.1
Building package at path:  $PWD
https://github.com/elegantchaos/Builder.git
https://github.com/elegantchaos/Builder.git
{
  "dependencies" : [
    {
      "identity" : "logger",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.6.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/elegantchaos/Logger.git"
    },
    {
      "identity" : "swift-argument-parser",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.3.2",
            "upper_bound" : "1.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-argument-parser"
    }
  ],
  "manifest_display_name" : "Builder",
  "name" : "Builder",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.13"
    }
  ],
  "products" : [
    {
      "name" : "builder",
      "targets" : [
        "Builder"
      ],
      "type" : {
        "executable" : null
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "BuilderTests",
      "module_type" : "SwiftTarget",
      "name" : "BuilderTests",
      "path" : "Tests/BuilderTests",
      "sources" : [
        "BuilderTests.swift"
      ],
      "target_dependencies" : [
        "Builder"
      ],
      "type" : "test"
    },
    {
      "c99name" : "BuilderCore",
      "module_type" : "SwiftTarget",
      "name" : "BuilderCore",
      "path" : "Sources/BuilderCore",
      "product_dependencies" : [
        "ArgumentParser",
        "Logger"
      ],
      "product_memberships" : [
        "builder"
      ],
      "sources" : [
        "BuildAction.swift",
        "Builder.swift",
        "BuilderActions.swift",
        "Configuration.swift",
        "Failure.swift",
        "MetadataAction.swift",
        "MetafileAction.swift",
        "Platform.swift",
        "RunAction.swift",
        "SemanticVersion.swift",
        "Settings.swift",
        "SettingsMapper.swift",
        "SettingsValue.swift",
        "StringExtensions.swift",
        "SwiftSettingsMapper.swift",
        "XCConfigSettingsMapper.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "Builder",
      "module_type" : "SwiftTarget",
      "name" : "Builder",
      "path" : "Sources/Builder",
      "product_dependencies" : [
        "ArgumentParser",
        "Logger"
      ],
      "product_memberships" : [
        "builder"
      ],
      "sources" : [
        "main.swift"
      ],
      "target_dependencies" : [
        "BuilderCore"
      ],
      "type" : "executable"
    }
  ],
  "tools_version" : "5.2"
}
Command line invocation:
    /Applications/Xcode-16.3.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
resolved source packages:
{
  "dependencies" : [
    {
      "identity" : "logger",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.6.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/elegantchaos/Logger.git"
    },
    {
      "identity" : "swift-argument-parser",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.3.2",
            "upper_bound" : "1.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-argument-parser"
    }
  ],
  "manifest_display_name" : "Builder",
  "name" : "Builder",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.13"
    }
  ],
  "products" : [
    {
      "name" : "builder",
      "targets" : [
        "Builder"
      ],
      "type" : {
        "executable" : null
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "BuilderTests",
      "module_type" : "SwiftTarget",
      "name" : "BuilderTests",
      "path" : "Tests/BuilderTests",
      "sources" : [
        "BuilderTests.swift"
      ],
      "target_dependencies" : [
        "Builder"
      ],
      "type" : "test"
    },
    {
      "c99name" : "BuilderCore",
      "module_type" : "SwiftTarget",
      "name" : "BuilderCore",
      "path" : "Sources/BuilderCore",
      "product_dependencies" : [
        "ArgumentParser",
        "Logger"
      ],
      "product_memberships" : [
        "builder"
      ],
      "sources" : [
        "BuildAction.swift",
        "Builder.swift",
        "BuilderActions.swift",
        "Configuration.swift",
        "Failure.swift",
        "MetadataAction.swift",
        "MetafileAction.swift",
        "Platform.swift",
        "RunAction.swift",
        "SemanticVersion.swift",
        "Settings.swift",
        "SettingsMapper.swift",
        "SettingsValue.swift",
        "StringExtensions.swift",
        "SwiftSettingsMapper.swift",
        "XCConfigSettingsMapper.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "Builder",
      "module_type" : "SwiftTarget",
      "name" : "Builder",
      "path" : "Sources/Builder",
      "product_dependencies" : [
        "ArgumentParser",
        "Logger"
      ],
      "product_memberships" : [
        "builder"
      ],
      "sources" : [
        "main.swift"
      ],
      "target_dependencies" : [
        "BuilderCore"
      ],
      "type" : "executable"
    }
  ],
  "tools_version" : "5.2"
}
{
  "project" : {
    "configurations" : [
      "Debug",
      "Release"
    ],
    "name" : "Builder",
    "schemes" : [
      "build",
      "Builder-Package",
      "BuilderCommand",
      "BuilderPackageDescription",
      "BuilderPackageTests",
      "DocoptPackageDescription",
      "LoggerPackageDescription"
    ],
    "targets" : [
      "Builder",
      "BuilderCommand",
      "BuilderPackageDescription",
      "BuilderPackageTests",
      "BuilderTests",
      "Docopt",
      "DocoptPackageDescription",
      "Logger",
      "LoggerPackageDescription",
      "build"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme Builder-Package -destination generic/platform=watchOS 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 Builder-Package -destination generic/platform=watchOS "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
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (4 targets)
    Target 'BuilderCommand' in project 'Builder'
        ➜ Explicit dependency on target 'Builder' in project 'Builder'
        ➜ Explicit dependency on target 'Logger' in project 'Builder'
        ➜ Explicit dependency on target 'Docopt' in project 'Builder'
    Target 'Builder' in project 'Builder'
        ➜ Explicit dependency on target 'Logger' in project 'Builder'
        ➜ Explicit dependency on target 'Docopt' in project 'Builder'
    Target 'Docopt' in project 'Builder' (no dependencies)
    Target 'Logger' in project 'Builder' (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/WatchOS.platform/Developer/SDKs/WatchOS11.4.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: 77fa70393c7ab8e2f6bb2994f758096c
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/77fa70393c7ab8e2f6bb2994f758096c.xcbuilddata
/Users/admin/builder/spi-builder-workspace/Builder.xcodeproj: error: Signing for "BuilderCommand" requires a development team. Select a development team in the Signing & Capabilities editor. (in target 'BuilderCommand' from project 'Builder')
** BUILD FAILED **
The following build commands failed:
	Building project Builder with scheme Builder-Package
(1 failure)
Command line invocation:
    /Applications/Xcode-16.3.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
resolved source packages:
{
  "dependencies" : [
    {
      "identity" : "logger",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.6.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/elegantchaos/Logger.git"
    },
    {
      "identity" : "swift-argument-parser",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.3.2",
            "upper_bound" : "1.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-argument-parser"
    }
  ],
  "manifest_display_name" : "Builder",
  "name" : "Builder",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.13"
    }
  ],
  "products" : [
    {
      "name" : "builder",
      "targets" : [
        "Builder"
      ],
      "type" : {
        "executable" : null
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "BuilderTests",
      "module_type" : "SwiftTarget",
      "name" : "BuilderTests",
      "path" : "Tests/BuilderTests",
      "sources" : [
        "BuilderTests.swift"
      ],
      "target_dependencies" : [
        "Builder"
      ],
      "type" : "test"
    },
    {
      "c99name" : "BuilderCore",
      "module_type" : "SwiftTarget",
      "name" : "BuilderCore",
      "path" : "Sources/BuilderCore",
      "product_dependencies" : [
        "ArgumentParser",
        "Logger"
      ],
      "product_memberships" : [
        "builder"
      ],
      "sources" : [
        "BuildAction.swift",
        "Builder.swift",
        "BuilderActions.swift",
        "Configuration.swift",
        "Failure.swift",
        "MetadataAction.swift",
        "MetafileAction.swift",
        "Platform.swift",
        "RunAction.swift",
        "SemanticVersion.swift",
        "Settings.swift",
        "SettingsMapper.swift",
        "SettingsValue.swift",
        "StringExtensions.swift",
        "SwiftSettingsMapper.swift",
        "XCConfigSettingsMapper.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "Builder",
      "module_type" : "SwiftTarget",
      "name" : "Builder",
      "path" : "Sources/Builder",
      "product_dependencies" : [
        "ArgumentParser",
        "Logger"
      ],
      "product_memberships" : [
        "builder"
      ],
      "sources" : [
        "main.swift"
      ],
      "target_dependencies" : [
        "BuilderCore"
      ],
      "type" : "executable"
    }
  ],
  "tools_version" : "5.2"
}
{
  "project" : {
    "configurations" : [
      "Debug",
      "Release"
    ],
    "name" : "Builder",
    "schemes" : [
      "build",
      "Builder-Package",
      "BuilderCommand",
      "BuilderPackageDescription",
      "BuilderPackageTests",
      "DocoptPackageDescription",
      "LoggerPackageDescription"
    ],
    "targets" : [
      "Builder",
      "BuilderCommand",
      "BuilderPackageDescription",
      "BuilderPackageTests",
      "BuilderTests",
      "Docopt",
      "DocoptPackageDescription",
      "Logger",
      "LoggerPackageDescription",
      "build"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme Builder-Package -destination generic/platform=watchOS
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 Builder-Package -destination generic/platform=watchOS
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (4 targets)
    Target 'BuilderCommand' in project 'Builder'
        ➜ Explicit dependency on target 'Builder' in project 'Builder'
        ➜ Explicit dependency on target 'Logger' in project 'Builder'
        ➜ Explicit dependency on target 'Docopt' in project 'Builder'
    Target 'Builder' in project 'Builder'
        ➜ Explicit dependency on target 'Logger' in project 'Builder'
        ➜ Explicit dependency on target 'Docopt' in project 'Builder'
    Target 'Docopt' in project 'Builder' (no dependencies)
    Target 'Logger' in project 'Builder' (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/WatchOS.platform/Developer/SDKs/WatchOS11.4.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: 6e0f4aa0b5f9778665a1849a7f159964
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/6e0f4aa0b5f9778665a1849a7f159964.xcbuilddata
/Users/admin/builder/spi-builder-workspace/Builder.xcodeproj: error: Signing for "BuilderCommand" requires a development team. Select a development team in the Signing & Capabilities editor. (in target 'BuilderCommand' from project 'Builder')
** BUILD FAILED **
The following build commands failed:
	Building project Builder with scheme Builder-Package
(1 failure)
BUILD FAILURE 6.1 watchOS