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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 ReleaseRadar, reference v0.2.2 (657783), with Swift 6.1 for watchOS using Xcode 16.3 on 24 Apr 2025 13:19:54 UTC.

Build Command

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

Build Log

========================================
RunAll
========================================
Builder version: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/halcyonmobile/ReleaseRadar.git
Reference: v0.2.2
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/halcyonmobile/ReleaseRadar
 * tag               v0.2.2     -> FETCH_HEAD
HEAD is now at 6577833 Move mark read to different method
Cloned https://github.com/halcyonmobile/ReleaseRadar.git
Revision (git rev-parse @):
6577833441a0af50bfc98e6b8d52a35c464dae07
SUCCESS checkout https://github.com/halcyonmobile/ReleaseRadar.git at v0.2.2
========================================
Build
========================================
Selected platform:         watchOS
Swift version:             6.1
Building package at path:  $PWD
https://github.com/halcyonmobile/ReleaseRadar.git
https://github.com/halcyonmobile/ReleaseRadar.git
{
  "dependencies" : [
  ],
  "manifest_display_name" : "ReleaseRadar",
  "name" : "ReleaseRadar",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "ReleaseRadar",
      "targets" : [
        "ReleaseRadar"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "Example",
      "targets" : [
        "Example"
      ],
      "type" : {
        "executable" : null
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "ReleaseRadarTests",
      "module_type" : "SwiftTarget",
      "name" : "ReleaseRadarTests",
      "path" : "Tests/ReleaseRadarTests",
      "sources" : [
        "CheckPolicyTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "ReleaseRadar"
      ],
      "type" : "test"
    },
    {
      "c99name" : "ReleaseRadar",
      "module_type" : "SwiftTarget",
      "name" : "ReleaseRadar",
      "path" : "Sources/ReleaseRadar",
      "product_memberships" : [
        "ReleaseRadar",
        "Example"
      ],
      "sources" : [
        "Config.swift",
        "Models/CheckingResult.swift",
        "Models/Result.swift",
        "ReleaseRadar.swift",
        "Utilities/Bundle+Version.swift",
        "Utilities/CheckPolicy.swift",
        "Utilities/Collection+Padded.swift",
        "iTunes Search/AppInfo.swift",
        "iTunes Search/ITunesChecker.swift",
        "iTunes Search/SearchResult.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "Example",
      "module_type" : "SwiftTarget",
      "name" : "Example",
      "path" : "Sources/Example",
      "product_memberships" : [
        "Example"
      ],
      "sources" : [
        "main.swift"
      ],
      "target_dependencies" : [
        "ReleaseRadar"
      ],
      "type" : "executable"
    }
  ],
  "tools_version" : "4.2"
}
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" : [
  ],
  "manifest_display_name" : "ReleaseRadar",
  "name" : "ReleaseRadar",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "ReleaseRadar",
      "targets" : [
        "ReleaseRadar"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "Example",
      "targets" : [
        "Example"
      ],
      "type" : {
        "executable" : null
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "ReleaseRadarTests",
      "module_type" : "SwiftTarget",
      "name" : "ReleaseRadarTests",
      "path" : "Tests/ReleaseRadarTests",
      "sources" : [
        "CheckPolicyTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "ReleaseRadar"
      ],
      "type" : "test"
    },
    {
      "c99name" : "ReleaseRadar",
      "module_type" : "SwiftTarget",
      "name" : "ReleaseRadar",
      "path" : "Sources/ReleaseRadar",
      "product_memberships" : [
        "ReleaseRadar",
        "Example"
      ],
      "sources" : [
        "Config.swift",
        "Models/CheckingResult.swift",
        "Models/Result.swift",
        "ReleaseRadar.swift",
        "Utilities/Bundle+Version.swift",
        "Utilities/CheckPolicy.swift",
        "Utilities/Collection+Padded.swift",
        "iTunes Search/AppInfo.swift",
        "iTunes Search/ITunesChecker.swift",
        "iTunes Search/SearchResult.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "Example",
      "module_type" : "SwiftTarget",
      "name" : "Example",
      "path" : "Sources/Example",
      "product_memberships" : [
        "Example"
      ],
      "sources" : [
        "main.swift"
      ],
      "target_dependencies" : [
        "ReleaseRadar"
      ],
      "type" : "executable"
    }
  ],
  "tools_version" : "4.2"
}
{
  "project" : {
    "configurations" : [
      "Debug",
      "Release"
    ],
    "name" : "ReleaseRadar",
    "schemes" : [
      "Example",
      "ReleaseRadar-Package"
    ],
    "targets" : [
      "Example",
      "ReleaseRadar",
      "ReleaseRadarPackageDescription",
      "ReleaseRadarPackageTests",
      "ReleaseRadarTests"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme ReleaseRadar-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 ReleaseRadar-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 (2 targets)
    Target 'Example' in project 'ReleaseRadar'
        ➜ Explicit dependency on target 'ReleaseRadar' in project 'ReleaseRadar'
    Target 'ReleaseRadar' in project 'ReleaseRadar' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ExecuteExternalTool /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -isysroot /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/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/swiftc --version
ExecuteExternalTool /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
Build description signature: 95f507af5f210012b94846a390ba25ac
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/95f507af5f210012b94846a390ba25ac.xcbuilddata
/Users/admin/builder/spi-builder-workspace/ReleaseRadar.xcodeproj: error: Signing for "Example" requires a development team. Select a development team in the Signing & Capabilities editor. (in target 'Example' from project 'ReleaseRadar')
** BUILD FAILED **
The following build commands failed:
	Building project ReleaseRadar with scheme ReleaseRadar-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" : [
  ],
  "manifest_display_name" : "ReleaseRadar",
  "name" : "ReleaseRadar",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "ReleaseRadar",
      "targets" : [
        "ReleaseRadar"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "Example",
      "targets" : [
        "Example"
      ],
      "type" : {
        "executable" : null
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "ReleaseRadarTests",
      "module_type" : "SwiftTarget",
      "name" : "ReleaseRadarTests",
      "path" : "Tests/ReleaseRadarTests",
      "sources" : [
        "CheckPolicyTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "ReleaseRadar"
      ],
      "type" : "test"
    },
    {
      "c99name" : "ReleaseRadar",
      "module_type" : "SwiftTarget",
      "name" : "ReleaseRadar",
      "path" : "Sources/ReleaseRadar",
      "product_memberships" : [
        "ReleaseRadar",
        "Example"
      ],
      "sources" : [
        "Config.swift",
        "Models/CheckingResult.swift",
        "Models/Result.swift",
        "ReleaseRadar.swift",
        "Utilities/Bundle+Version.swift",
        "Utilities/CheckPolicy.swift",
        "Utilities/Collection+Padded.swift",
        "iTunes Search/AppInfo.swift",
        "iTunes Search/ITunesChecker.swift",
        "iTunes Search/SearchResult.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "Example",
      "module_type" : "SwiftTarget",
      "name" : "Example",
      "path" : "Sources/Example",
      "product_memberships" : [
        "Example"
      ],
      "sources" : [
        "main.swift"
      ],
      "target_dependencies" : [
        "ReleaseRadar"
      ],
      "type" : "executable"
    }
  ],
  "tools_version" : "4.2"
}
{
  "project" : {
    "configurations" : [
      "Debug",
      "Release"
    ],
    "name" : "ReleaseRadar",
    "schemes" : [
      "Example",
      "ReleaseRadar-Package"
    ],
    "targets" : [
      "Example",
      "ReleaseRadar",
      "ReleaseRadarPackageDescription",
      "ReleaseRadarPackageTests",
      "ReleaseRadarTests"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme ReleaseRadar-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 ReleaseRadar-Package -destination generic/platform=watchOS
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (2 targets)
    Target 'Example' in project 'ReleaseRadar'
        ➜ Explicit dependency on target 'ReleaseRadar' in project 'ReleaseRadar'
    Target 'ReleaseRadar' in project 'ReleaseRadar' (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: 6fa4d08b2a3d05d1489b5930b763eb10
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/6fa4d08b2a3d05d1489b5930b763eb10.xcbuilddata
/Users/admin/builder/spi-builder-workspace/ReleaseRadar.xcodeproj: error: Signing for "Example" requires a development team. Select a development team in the Signing & Capabilities editor. (in target 'Example' from project 'ReleaseRadar')
** BUILD FAILED **
The following build commands failed:
	Building project ReleaseRadar with scheme ReleaseRadar-Package
(1 failure)
BUILD FAILURE 6.1 watchOS