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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 SwiftSensors, reference main (f80560), with Swift 6.0 for watchOS using Xcode 16.2 on 21 Mar 2025 16:50:27 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.2.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme SwiftSensors -destination generic/platform=watchOS

Build Log

========================================
RunAll
========================================
Builder version: 4.60.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/getmirai/swift-sensors.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/getmirai/swift-sensors
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at f805608 add sources
Cloned https://github.com/getmirai/swift-sensors.git
Revision (git rev-parse @):
f805608cedad5e05ca1a95cf28ffd6c899497adc
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/getmirai/swift-sensors.git at main
========================================
Build
========================================
Selected platform:         watchOS
Swift version:             6.0
Building package at path:  $PWD
https://github.com/getmirai/swift-sensors.git
https://github.com/getmirai/swift-sensors.git
{
  "dependencies" : [
  ],
  "manifest_display_name" : "SwiftSensors",
  "name" : "SwiftSensors",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "16.0"
    }
  ],
  "products" : [
    {
      "name" : "SwiftSensors",
      "targets" : [
        "SwiftSensors"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SwiftSensors",
      "module_type" : "SwiftTarget",
      "name" : "SwiftSensors",
      "path" : "Sources/SwiftSensors",
      "product_memberships" : [
        "SwiftSensors"
      ],
      "sources" : [
        "PowerSensors.swift",
        "SensorBase.swift",
        "SensorFormatter.swift",
        "SwiftSensors.swift",
        "SystemStats.swift",
        "ThermalSensors.swift"
      ],
      "target_dependencies" : [
        "PrivateAPI"
      ],
      "type" : "library"
    },
    {
      "c99name" : "PrivateAPI",
      "module_type" : "ClangTarget",
      "name" : "PrivateAPI",
      "path" : "Sources/PrivateAPI",
      "product_memberships" : [
        "SwiftSensors"
      ],
      "sources" : [
        "PrivateAPI.m"
      ],
      "target_dependencies" : [
        "IOKit"
      ],
      "type" : "library"
    },
    {
      "c99name" : "IOKit",
      "module_type" : "BinaryTarget",
      "name" : "IOKit",
      "path" : "Frameworks/IOKit.xcframework",
      "product_memberships" : [
        "SwiftSensors"
      ],
      "sources" : [
      ],
      "type" : "binary"
    }
  ],
  "tools_version" : "6.0"
}
Command line invocation:
    /Applications/Xcode-16.2.0.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
Resolve Package Graph
Resolve Package Graph
Resolved source packages:
  SwiftSensors: /Users/admin/builder/spi-builder-workspace
resolved source packages: SwiftSensors
{
  "dependencies" : [
  ],
  "manifest_display_name" : "SwiftSensors",
  "name" : "SwiftSensors",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "16.0"
    }
  ],
  "products" : [
    {
      "name" : "SwiftSensors",
      "targets" : [
        "SwiftSensors"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SwiftSensors",
      "module_type" : "SwiftTarget",
      "name" : "SwiftSensors",
      "path" : "Sources/SwiftSensors",
      "product_memberships" : [
        "SwiftSensors"
      ],
      "sources" : [
        "PowerSensors.swift",
        "SensorBase.swift",
        "SensorFormatter.swift",
        "SwiftSensors.swift",
        "SystemStats.swift",
        "ThermalSensors.swift"
      ],
      "target_dependencies" : [
        "PrivateAPI"
      ],
      "type" : "library"
    },
    {
      "c99name" : "PrivateAPI",
      "module_type" : "ClangTarget",
      "name" : "PrivateAPI",
      "path" : "Sources/PrivateAPI",
      "product_memberships" : [
        "SwiftSensors"
      ],
      "sources" : [
        "PrivateAPI.m"
      ],
      "target_dependencies" : [
        "IOKit"
      ],
      "type" : "library"
    },
    {
      "c99name" : "IOKit",
      "module_type" : "BinaryTarget",
      "name" : "IOKit",
      "path" : "Frameworks/IOKit.xcframework",
      "product_memberships" : [
        "SwiftSensors"
      ],
      "sources" : [
      ],
      "type" : "binary"
    }
  ],
  "tools_version" : "6.0"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "SwiftSensors"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.2.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme SwiftSensors -destination generic/platform=watchOS OTHER_SWIFT_FLAGS=-stats-output-dir .stats
Command line invocation:
    /Applications/Xcode-16.2.0.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 SwiftSensors -destination generic/platform=watchOS "OTHER_SWIFT_FLAGS=-stats-output-dir .stats"
User defaults from command line:
    IDEClonedSourcePackagesDirPathOverride = /Users/admin/builder/spi-builder-workspace/.dependencies
    IDEDerivedDataPathOverride = /Users/admin/builder/spi-builder-workspace/.derivedData
    IDEPackageSupportUseBuiltinSCM = YES
Build settings from command line:
    OTHER_SWIFT_FLAGS = -stats-output-dir .stats
Resolve Package Graph
Resolved source packages:
  SwiftSensors: /Users/admin/builder/spi-builder-workspace
Prepare packages
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (3 targets)
    Target 'SwiftSensors' in project 'SwiftSensors'
        ➜ Explicit dependency on target 'SwiftSensors' in project 'SwiftSensors'
        ➜ Explicit dependency on target 'PrivateAPI' in project 'SwiftSensors'
    Target 'SwiftSensors' in project 'SwiftSensors'
        ➜ Explicit dependency on target 'PrivateAPI' in project 'SwiftSensors'
    Target 'PrivateAPI' in project 'SwiftSensors' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ExecuteExternalTool /Applications/Xcode-16.2.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -isysroot /Applications/Xcode-16.2.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS11.2.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-16.2.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -arch arm64 -isysroot /Applications/Xcode-16.2.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS11.2.sdk -x objective-c -c /dev/null
ExecuteExternalTool /Applications/Xcode-16.2.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc --version
ExecuteExternalTool /Applications/Xcode-16.2.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
ReadFileContents /Applications/Xcode-16.2.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/share/docc/features.json
ExecuteExternalTool /Applications/Xcode-16.2.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -arch arm64 -isysroot /Applications/Xcode-16.2.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS11.2.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-16.2.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -arch arm64_32 -isysroot /Applications/Xcode-16.2.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS11.2.sdk -x objective-c -c /dev/null
ExecuteExternalTool /Applications/Xcode-16.2.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -arch arm64_32 -isysroot /Applications/Xcode-16.2.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS11.2.sdk -x c -c /dev/null
Build description signature: 2145db4f68d2fdc44a0a08a2474bb10d
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/2145db4f68d2fdc44a0a08a2474bb10d.xcbuilddata
/Users/admin/builder/spi-builder-workspace/Frameworks/IOKit.xcframework:1:1: error: While building for watchOS, no library for this platform was found in '/Users/admin/builder/spi-builder-workspace/Frameworks/IOKit.xcframework'. (in target 'PrivateAPI' from project 'SwiftSensors')
/Users/admin/builder/spi-builder-workspace/Frameworks/IOKit.xcframework:1:1: error: While building for watchOS, no library for this platform was found in '/Users/admin/builder/spi-builder-workspace/Frameworks/IOKit.xcframework'. (in target 'SwiftSensors' from project 'SwiftSensors')
/Users/admin/builder/spi-builder-workspace/Frameworks/IOKit.xcframework:1:1: error: While building for watchOS, no library for this platform was found in '/Users/admin/builder/spi-builder-workspace/Frameworks/IOKit.xcframework'. (in target 'SwiftSensors' from project 'SwiftSensors')
** BUILD FAILED **
The following build commands failed:
	Building workspace spi-builder-workspace with scheme SwiftSensors
(1 failure)
Command line invocation:
    /Applications/Xcode-16.2.0.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:
  SwiftSensors: /Users/admin/builder/spi-builder-workspace
resolved source packages: SwiftSensors
{
  "dependencies" : [
  ],
  "manifest_display_name" : "SwiftSensors",
  "name" : "SwiftSensors",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "16.0"
    }
  ],
  "products" : [
    {
      "name" : "SwiftSensors",
      "targets" : [
        "SwiftSensors"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SwiftSensors",
      "module_type" : "SwiftTarget",
      "name" : "SwiftSensors",
      "path" : "Sources/SwiftSensors",
      "product_memberships" : [
        "SwiftSensors"
      ],
      "sources" : [
        "PowerSensors.swift",
        "SensorBase.swift",
        "SensorFormatter.swift",
        "SwiftSensors.swift",
        "SystemStats.swift",
        "ThermalSensors.swift"
      ],
      "target_dependencies" : [
        "PrivateAPI"
      ],
      "type" : "library"
    },
    {
      "c99name" : "PrivateAPI",
      "module_type" : "ClangTarget",
      "name" : "PrivateAPI",
      "path" : "Sources/PrivateAPI",
      "product_memberships" : [
        "SwiftSensors"
      ],
      "sources" : [
        "PrivateAPI.m"
      ],
      "target_dependencies" : [
        "IOKit"
      ],
      "type" : "library"
    },
    {
      "c99name" : "IOKit",
      "module_type" : "BinaryTarget",
      "name" : "IOKit",
      "path" : "Frameworks/IOKit.xcframework",
      "product_memberships" : [
        "SwiftSensors"
      ],
      "sources" : [
      ],
      "type" : "binary"
    }
  ],
  "tools_version" : "6.0"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "SwiftSensors"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.2.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme SwiftSensors -destination generic/platform=watchOS
Command line invocation:
    /Applications/Xcode-16.2.0.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 SwiftSensors -destination generic/platform=watchOS
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:
  SwiftSensors: /Users/admin/builder/spi-builder-workspace
Prepare packages
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (3 targets)
    Target 'SwiftSensors' in project 'SwiftSensors'
        ➜ Explicit dependency on target 'SwiftSensors' in project 'SwiftSensors'
        ➜ Explicit dependency on target 'PrivateAPI' in project 'SwiftSensors'
    Target 'SwiftSensors' in project 'SwiftSensors'
        ➜ Explicit dependency on target 'PrivateAPI' in project 'SwiftSensors'
    Target 'PrivateAPI' in project 'SwiftSensors' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ExecuteExternalTool /Applications/Xcode-16.2.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -isysroot /Applications/Xcode-16.2.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS11.2.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-16.2.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -arch arm64 -isysroot /Applications/Xcode-16.2.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS11.2.sdk -x objective-c -c /dev/null
ExecuteExternalTool /Applications/Xcode-16.2.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc --version
ExecuteExternalTool /Applications/Xcode-16.2.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
ReadFileContents /Applications/Xcode-16.2.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/share/docc/features.json
ExecuteExternalTool /Applications/Xcode-16.2.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -arch arm64 -isysroot /Applications/Xcode-16.2.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS11.2.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-16.2.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -arch arm64_32 -isysroot /Applications/Xcode-16.2.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS11.2.sdk -x objective-c -c /dev/null
ExecuteExternalTool /Applications/Xcode-16.2.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -arch arm64_32 -isysroot /Applications/Xcode-16.2.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS11.2.sdk -x c -c /dev/null
Build description signature: d7a1803413eff77a253572600359580a
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/d7a1803413eff77a253572600359580a.xcbuilddata
/Users/admin/builder/spi-builder-workspace/Frameworks/IOKit.xcframework:1:1: error: While building for watchOS, no library for this platform was found in '/Users/admin/builder/spi-builder-workspace/Frameworks/IOKit.xcframework'. (in target 'PrivateAPI' from project 'SwiftSensors')
/Users/admin/builder/spi-builder-workspace/Frameworks/IOKit.xcframework:1:1: error: While building for watchOS, no library for this platform was found in '/Users/admin/builder/spi-builder-workspace/Frameworks/IOKit.xcframework'. (in target 'SwiftSensors' from project 'SwiftSensors')
/Users/admin/builder/spi-builder-workspace/Frameworks/IOKit.xcframework:1:1: error: While building for watchOS, no library for this platform was found in '/Users/admin/builder/spi-builder-workspace/Frameworks/IOKit.xcframework'. (in target 'SwiftSensors' from project 'SwiftSensors')
** BUILD FAILED **
The following build commands failed:
	Building workspace spi-builder-workspace with scheme SwiftSensors
(1 failure)
BUILD FAILURE 6.0 watchOS