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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 Coverage, reference v1.0.6 (fa0d05), with Swift 6.1 for watchOS using Xcode 16.3 on 24 Apr 2025 12:36:02 UTC.

Build Command

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

Build Log

========================================
RunAll
========================================
Builder version: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/elegantchaos/Coverage.git
Reference: v1.0.6
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/elegantchaos/Coverage
 * tag               v1.0.6     -> FETCH_HEAD
HEAD is now at fa0d058 Updated Arguments. Require macOS 10.13
Cloned https://github.com/elegantchaos/Coverage.git
Revision (git rev-parse @):
fa0d05817cb910923ace380a9a17fb2862d92ec9
SUCCESS checkout https://github.com/elegantchaos/Coverage.git at v1.0.6
========================================
Build
========================================
Selected platform:         watchOS
Swift version:             6.1
Building package at path:  $PWD
https://github.com/elegantchaos/Coverage.git
https://github.com/elegantchaos/Coverage.git
{
  "dependencies" : [
    {
      "identity" : "runner",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.0.2",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/elegantchaos/Runner.git"
    },
    {
      "identity" : "arguments",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.1.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/elegantchaos/Arguments.git"
    },
    {
      "identity" : "logger",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.3.6",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/elegantchaos/Logger.git"
    }
  ],
  "manifest_display_name" : "Coverage",
  "name" : "Coverage",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.13"
    }
  ],
  "products" : [
    {
      "name" : "coverage",
      "targets" : [
        "Coverage"
      ],
      "type" : {
        "executable" : null
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "CoverageTests",
      "module_type" : "SwiftTarget",
      "name" : "CoverageTests",
      "path" : "Tests/CoverageTests",
      "sources" : [
        "CoverageTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "Coverage"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Coverage",
      "module_type" : "SwiftTarget",
      "name" : "Coverage",
      "path" : "Sources/Coverage",
      "product_dependencies" : [
        "Runner",
        "Arguments",
        "Logger"
      ],
      "product_memberships" : [
        "coverage"
      ],
      "sources" : [
        "CodeCoverageParser.swift",
        "XCodeResultParser.swift",
        "main.swift"
      ],
      "type" : "executable"
    }
  ],
  "tools_version" : "5.0"
}
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" : "runner",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.0.2",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/elegantchaos/Runner.git"
    },
    {
      "identity" : "arguments",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.1.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/elegantchaos/Arguments.git"
    },
    {
      "identity" : "logger",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.3.6",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/elegantchaos/Logger.git"
    }
  ],
  "manifest_display_name" : "Coverage",
  "name" : "Coverage",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.13"
    }
  ],
  "products" : [
    {
      "name" : "coverage",
      "targets" : [
        "Coverage"
      ],
      "type" : {
        "executable" : null
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "CoverageTests",
      "module_type" : "SwiftTarget",
      "name" : "CoverageTests",
      "path" : "Tests/CoverageTests",
      "sources" : [
        "CoverageTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "Coverage"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Coverage",
      "module_type" : "SwiftTarget",
      "name" : "Coverage",
      "path" : "Sources/Coverage",
      "product_dependencies" : [
        "Runner",
        "Arguments",
        "Logger"
      ],
      "product_memberships" : [
        "coverage"
      ],
      "sources" : [
        "CodeCoverageParser.swift",
        "XCodeResultParser.swift",
        "main.swift"
      ],
      "type" : "executable"
    }
  ],
  "tools_version" : "5.0"
}
{
  "project" : {
    "configurations" : [
      "Debug",
      "Release"
    ],
    "name" : "Coverage",
    "schemes" : [
      "Coverage",
      "Coverage-Package"
    ],
    "targets" : [
      "Arguments",
      "ArgumentsPackageDescription",
      "Coverage",
      "CoveragePackageDescription",
      "CoveragePackageTests",
      "CoverageTests",
      "Docopt",
      "DocoptPackageDescription",
      "Logger",
      "LoggerPackageDescription",
      "Runner",
      "RunnerPackageDescription",
      "coverage"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme Coverage-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 Coverage-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 (5 targets)
    Target 'Coverage' in project 'Coverage'
        ➜ Explicit dependency on target 'Arguments' in project 'Coverage'
        ➜ Explicit dependency on target 'Logger' in project 'Coverage'
        ➜ Explicit dependency on target 'Docopt' in project 'Coverage'
        ➜ Explicit dependency on target 'Runner' in project 'Coverage'
    Target 'Runner' in project 'Coverage' (no dependencies)
    Target 'Arguments' in project 'Coverage'
        ➜ Explicit dependency on target 'Logger' in project 'Coverage'
        ➜ Explicit dependency on target 'Docopt' in project 'Coverage'
    Target 'Docopt' in project 'Coverage' (no dependencies)
    Target 'Logger' in project 'Coverage' (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: 3d13666e7d36eb938ec8396de11135ed
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/3d13666e7d36eb938ec8396de11135ed.xcbuilddata
/Users/admin/builder/spi-builder-workspace/Coverage.xcodeproj: error: Signing for "Coverage" requires a development team. Select a development team in the Signing & Capabilities editor. (in target 'Coverage' from project 'Coverage')
** BUILD FAILED **
The following build commands failed:
	Building project Coverage with scheme Coverage-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" : "runner",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.0.2",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/elegantchaos/Runner.git"
    },
    {
      "identity" : "arguments",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.1.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/elegantchaos/Arguments.git"
    },
    {
      "identity" : "logger",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.3.6",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/elegantchaos/Logger.git"
    }
  ],
  "manifest_display_name" : "Coverage",
  "name" : "Coverage",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.13"
    }
  ],
  "products" : [
    {
      "name" : "coverage",
      "targets" : [
        "Coverage"
      ],
      "type" : {
        "executable" : null
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "CoverageTests",
      "module_type" : "SwiftTarget",
      "name" : "CoverageTests",
      "path" : "Tests/CoverageTests",
      "sources" : [
        "CoverageTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "Coverage"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Coverage",
      "module_type" : "SwiftTarget",
      "name" : "Coverage",
      "path" : "Sources/Coverage",
      "product_dependencies" : [
        "Runner",
        "Arguments",
        "Logger"
      ],
      "product_memberships" : [
        "coverage"
      ],
      "sources" : [
        "CodeCoverageParser.swift",
        "XCodeResultParser.swift",
        "main.swift"
      ],
      "type" : "executable"
    }
  ],
  "tools_version" : "5.0"
}
{
  "project" : {
    "configurations" : [
      "Debug",
      "Release"
    ],
    "name" : "Coverage",
    "schemes" : [
      "Coverage",
      "Coverage-Package"
    ],
    "targets" : [
      "Arguments",
      "ArgumentsPackageDescription",
      "Coverage",
      "CoveragePackageDescription",
      "CoveragePackageTests",
      "CoverageTests",
      "Docopt",
      "DocoptPackageDescription",
      "Logger",
      "LoggerPackageDescription",
      "Runner",
      "RunnerPackageDescription",
      "coverage"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme Coverage-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 Coverage-Package -destination generic/platform=watchOS
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (5 targets)
    Target 'Coverage' in project 'Coverage'
        ➜ Explicit dependency on target 'Arguments' in project 'Coverage'
        ➜ Explicit dependency on target 'Logger' in project 'Coverage'
        ➜ Explicit dependency on target 'Docopt' in project 'Coverage'
        ➜ Explicit dependency on target 'Runner' in project 'Coverage'
    Target 'Runner' in project 'Coverage' (no dependencies)
    Target 'Arguments' in project 'Coverage'
        ➜ Explicit dependency on target 'Logger' in project 'Coverage'
        ➜ Explicit dependency on target 'Docopt' in project 'Coverage'
    Target 'Docopt' in project 'Coverage' (no dependencies)
    Target 'Logger' in project 'Coverage' (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: 86e464fcc223ff35f9169852f8636d3a
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/86e464fcc223ff35f9169852f8636d3a.xcbuilddata
/Users/admin/builder/spi-builder-workspace/Coverage.xcodeproj: error: Signing for "Coverage" requires a development team. Select a development team in the Signing & Capabilities editor. (in target 'Coverage' from project 'Coverage')
** BUILD FAILED **
The following build commands failed:
	Building project Coverage with scheme Coverage-Package
(1 failure)
BUILD FAILURE 6.1 watchOS