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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 swift-sass with Swift 6.0 for visionOS using Xcode 16.2.

Build Command

Build command unavailable

Build Log

========================================
RunAll
========================================
Builder version: 4.61.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/johnfairh/swift-sass.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/johnfairh/swift-sass
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 66d548f Update to Sass 1.87.0 (#45)
Submodule path 'sass': checked out 'a3ca9ed36f1aaf88a60b3f1f726691aec2a0ffa2'
Submodule 'sass' (https://github.com/sass/sass.git) registered for path 'sass'
Cloning into '/Users/admin/builder/spi-builder-workspace/sass'...
Cloned https://github.com/johnfairh/swift-sass.git
Revision (git rev-parse @):
66d548f15eb280f3228ac50d6ed17ba59e196b3c
SUCCESS checkout https://github.com/johnfairh/swift-sass.git at main
========================================
Build
========================================
Selected platform:         visionOS
Swift version:             6.0
Building package at path:  $PWD
https://github.com/johnfairh/swift-sass.git
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
Fetching from https://github.com/apple/swift-collections.git
Fetching from https://github.com/johnfairh/Semver.swift.git
Fetching from https://github.com/apple/swift-protobuf.git
Fetching from https://github.com/apple/swift-nio.git
Fetching from https://github.com/johnfairh/SourceMapper.git
Fetching from https://github.com/apple/swift-system.git
Fetching from https://github.com/apple/swift-atomics.git
Fetching from https://github.com/apple/swift-log.git
Creating working copy of package ‘swift-nio’
Checking out 2.81.0 of package ‘swift-nio’
Creating working copy of package ‘swift-protobuf’
Checking out 1.28.2 of package ‘swift-protobuf’
Creating working copy of package ‘swift-system’
Checking out 1.4.0 of package ‘swift-system’
Creating working copy of package ‘Semver.swift’
Checking out 1.2.4 of package ‘Semver.swift’
Creating working copy of package ‘SourceMapper’
Checking out 2.0.0 of package ‘SourceMapper’
Creating working copy of package ‘swift-collections’
Checking out 1.1.4 of package ‘swift-collections’
Creating working copy of package ‘swift-atomics’
Checking out 1.2.0 of package ‘swift-atomics’
Creating working copy of package ‘swift-log’
Checking out 1.6.2 of package ‘swift-log’
Resolved source packages:
  swift-system: https://github.com/apple/swift-system.git @ 1.4.0
  SourceMapper: https://github.com/johnfairh/SourceMapper.git @ 2.0.0
  Semver: https://github.com/johnfairh/Semver.swift.git @ 1.2.4
  swift-collections: https://github.com/apple/swift-collections.git @ 1.1.4
  swift-nio: https://github.com/apple/swift-nio.git @ 2.81.0
  swift-atomics: https://github.com/apple/swift-atomics.git @ 1.2.0
  swift-log: https://github.com/apple/swift-log.git @ 1.6.2
  SwiftProtobuf: https://github.com/apple/swift-protobuf.git @ 1.28.2
resolved source packages: swift-system, SourceMapper, Semver, swift-collections, swift-nio, swift-atomics, swift-log, SwiftProtobuf
{
  "dependencies" : [
    {
      "identity" : "swift-protobuf",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.26.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-protobuf.git"
    },
    {
      "identity" : "swift-nio",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "2.81.0",
            "upper_bound" : "3.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-nio.git"
    },
    {
      "identity" : "swift-log",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.4.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-log.git"
    },
    {
      "identity" : "swift-atomics",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.0.2",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-atomics.git"
    },
    {
      "identity" : "semver.swift",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.2.2",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/johnfairh/Semver.swift.git"
    },
    {
      "identity" : "sourcemapper",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "2.0.0",
            "upper_bound" : "3.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/johnfairh/SourceMapper.git"
    }
  ],
  "manifest_display_name" : "swift-sass",
  "name" : "swift-sass",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "14.0"
    }
  ],
  "products" : [
    {
      "name" : "DartSass",
      "targets" : [
        "DartSass"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "ssassc",
      "targets" : [
        "SassCli"
      ],
      "type" : {
        "executable" : null
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SassTests",
      "module_type" : "SwiftTarget",
      "name" : "SassTests",
      "path" : "Tests/SassTests",
      "sources" : [
        "TestCalculation.swift",
        "TestColor.swift",
        "TestCompilerResults.swift",
        "TestConstants.swift",
        "TestFunction.swift",
        "TestList.swift",
        "TestMap.swift",
        "TestNumber.swift",
        "TestString.swift"
      ],
      "target_dependencies" : [
        "Sass"
      ],
      "type" : "test"
    },
    {
      "c99name" : "SassCli",
      "module_type" : "SwiftTarget",
      "name" : "SassCli",
      "path" : "Sources/SassCli",
      "product_memberships" : [
        "ssassc"
      ],
      "sources" : [
        "ssassc.swift"
      ],
      "target_dependencies" : [
        "DartSass"
      ],
      "type" : "executable"
    },
    {
      "c99name" : "Sass",
      "module_type" : "SwiftTarget",
      "name" : "Sass",
      "path" : "Sources/Sass",
      "product_dependencies" : [
        "SourceMapper"
      ],
      "product_memberships" : [
        "DartSass",
        "ssassc"
      ],
      "sources" : [
        "ArgumentList.swift",
        "Calculation.swift",
        "Color.swift",
        "CompilerFunction.swift",
        "CompilerResults.swift",
        "CompilerTypes.swift",
        "Constants.swift",
        "DynamicFunction.swift",
        "FunctionTypes.swift",
        "List.swift",
        "Map.swift",
        "Mixin.swift",
        "Number.swift",
        "String.swift",
        "Units.swift",
        "Value.swift",
        "ValueConvertible.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "DartSassTests",
      "module_type" : "SwiftTarget",
      "name" : "DartSassTests",
      "path" : "Tests/DartSassTests",
      "sources" : [
        "TestCompilerErrors.swift",
        "TestFunctions.swift",
        "TestImporters.swift",
        "TestInterface.swift",
        "TestProtocolErrors.swift",
        "TestResetShutdown.swift",
        "TestUtils.swift",
        "TestVersions.swift"
      ],
      "target_dependencies" : [
        "DartSass"
      ],
      "type" : "test"
    },
    {
      "c99name" : "DartSassEmbeddedMacOS",
      "module_type" : "SwiftTarget",
      "name" : "DartSassEmbeddedMacOS",
      "path" : "Sources/DartSassEmbeddedMacOS",
      "product_memberships" : [
        "DartSass",
        "ssassc"
      ],
      "resources" : [
        {
          "path" : "/Users/admin/builder/spi-builder-workspace/Sources/DartSassEmbeddedMacOS/arm64",
          "rule" : {
            "copy" : {
            }
          }
        }
      ],
      "sources" : [
        "DartSassEmbeddedMacOS.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "DartSassEmbeddedLinux",
      "module_type" : "SwiftTarget",
      "name" : "DartSassEmbeddedLinux",
      "path" : "Sources/DartSassEmbeddedLinux",
      "product_memberships" : [
        "DartSass",
        "ssassc"
      ],
      "resources" : [
        {
          "path" : "/Users/admin/builder/spi-builder-workspace/Sources/DartSassEmbeddedLinux/arm64",
          "rule" : {
            "copy" : {
            }
          }
        }
      ],
      "sources" : [
        "DartSassEmbeddedLinux.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "DartSass",
      "module_type" : "SwiftTarget",
      "name" : "DartSass",
      "path" : "Sources/DartSass",
      "product_dependencies" : [
        "SwiftProtobuf",
        "NIOCore",
        "NIOPosix",
        "NIOFoundationCompat",
        "Atomics",
        "Logging",
        "Semver"
      ],
      "product_memberships" : [
        "DartSass",
        "ssassc"
      ],
      "sources" : [
        "BinaryProtocol.swift",
        "Compiler.swift",
        "CompilerRequests.swift",
        "CompilerWork.swift",
        "Concurrency+Extras.swift",
        "DartSassEmbedded.swift",
        "Deprecation.swift",
        "Errors.swift",
        "Exec.swift",
        "Importers.swift",
        "ProtobufConversion.swift",
        "ProtobufValueConversion.swift",
        "Versions.swift",
        "embedded_sass.pb.swift"
      ],
      "target_dependencies" : [
        "Sass",
        "DartSassEmbeddedMacOS",
        "DartSassEmbeddedLinux"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "6.0"
}
{
  "project" : {
    "configurations" : [
      "Debug",
      "Release"
    ],
    "name" : "swift-sass",
    "schemes" : [
      "swift-sass"
    ],
    "targets" : [
      "Sass",
      "DartSass",
      "DartSassTests",
      "Cli",
      "DartSassEmbeddedMacOS"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.2.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme swift-sass -destination generic/platform=xrOS
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 swift-sass -destination generic/platform=xrOS
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:
  swift-collections: https://github.com/apple/swift-collections.git @ 1.1.4
  swift-nio: https://github.com/apple/swift-nio.git @ 2.81.0
  Semver: https://github.com/johnfairh/Semver.swift.git @ 1.2.4
  swift-log: https://github.com/apple/swift-log.git @ 1.6.2
  swift-atomics: https://github.com/apple/swift-atomics.git @ 1.2.0
  SourceMapper: https://github.com/johnfairh/SourceMapper.git @ 2.0.0
  swift-system: https://github.com/apple/swift-system.git @ 1.4.0
  SwiftProtobuf: https://github.com/apple/swift-protobuf.git @ 1.28.2
2025-04-30 04:32:17.678 xcodebuild[786:4325] Writing error result bundle to /var/folders/5k/5yc19ymj0jqd5v0zvgfqz0xw0000gn/T/ResultBundle_2025-30-04_04-32-0017.xcresult
xcodebuild: error: Unable to find a destination matching the provided destination specifier:
		{ generic:1, platform:xrOS }
	Available destinations for the "swift-sass" scheme:
		{ platform:macOS, arch:arm64, id:a404b2f4dd3d7b75f6038d839380ef4f3faeed6b, name:My Mac }
		{ platform:macOS, arch:x86_64, id:a404b2f4dd3d7b75f6038d839380ef4f3faeed6b, name:My Mac }
		{ platform:iOS, id:dvtdevice-DVTiPhonePlaceholder-iphoneos:placeholder, name:Any iOS Device }
		{ platform:iOS Simulator, id:dvtdevice-DVTiOSDeviceSimulatorPlaceholder-iphonesimulator:placeholder, name:Any iOS Simulator Device }
		{ platform:macOS, name:Any Mac }
		{ platform:tvOS, id:dvtdevice-DVTiOSDevicePlaceholder-appletvos:placeholder, name:Any tvOS Device }
		{ platform:tvOS Simulator, id:dvtdevice-DVTiOSDeviceSimulatorPlaceholder-appletvsimulator:placeholder, name:Any tvOS Simulator Device }
		{ platform:watchOS, id:dvtdevice-DVTiOSDevicePlaceholder-watchos:placeholder, name:Any watchOS Device }
		{ platform:watchOS Simulator, id:dvtdevice-DVTiOSDeviceSimulatorPlaceholder-watchsimulator:placeholder, name:Any watchOS Simulator Device }
		{ platform:tvOS Simulator, id:83BDC69E-25A6-4EB2-A6F9-FF3DCD7C0AD4, OS:18.2, name:Apple TV }
		{ platform:tvOS Simulator, id:83BDC69E-25A6-4EB2-A6F9-FF3DCD7C0AD4, OS:18.2, name:Apple TV }
		{ platform:tvOS Simulator, id:A69F728D-40D9-4BDC-AAF0-7A6C625DAA17, OS:18.2, name:Apple TV 4K (3rd generation) }
		{ platform:tvOS Simulator, id:A69F728D-40D9-4BDC-AAF0-7A6C625DAA17, OS:18.2, name:Apple TV 4K (3rd generation) }
		{ platform:tvOS Simulator, id:34FCDF65-C0DF-4449-9D07-916398C20A25, OS:18.2, name:Apple TV 4K (3rd generation) (at 1080p) }
		{ platform:tvOS Simulator, id:34FCDF65-C0DF-4449-9D07-916398C20A25, OS:18.2, name:Apple TV 4K (3rd generation) (at 1080p) }
		{ platform:watchOS Simulator, id:E990D900-0EFC-458D-9C49-4FD8B801DE66, OS:11.2, name:Apple Watch SE (40mm) (2nd generation) }
		{ platform:watchOS Simulator, id:E990D900-0EFC-458D-9C49-4FD8B801DE66, OS:11.2, name:Apple Watch SE (40mm) (2nd generation) }
		{ platform:watchOS Simulator, id:FEB2F9D7-D41B-461F-95E9-04DF8BB21B09, OS:11.2, name:Apple Watch SE (44mm) (2nd generation) }
		{ platform:watchOS Simulator, id:FEB2F9D7-D41B-461F-95E9-04DF8BB21B09, OS:11.2, name:Apple Watch SE (44mm) (2nd generation) }
		{ platform:watchOS Simulator, id:176DB7D4-8957-456B-8ABE-9ADE65AD8ED8, OS:11.2, name:Apple Watch Series 10 (42mm) }
		{ platform:watchOS Simulator, id:176DB7D4-8957-456B-8ABE-9ADE65AD8ED8, OS:11.2, name:Apple Watch Series 10 (42mm) }
		{ platform:watchOS Simulator, id:D2E568B7-171D-43A1-810C-2D269BD27AC9, OS:11.2, name:Apple Watch Series 10 (46mm) }
		{ platform:watchOS Simulator, id:D2E568B7-171D-43A1-810C-2D269BD27AC9, OS:11.2, name:Apple Watch Series 10 (46mm) }
		{ platform:watchOS Simulator, id:B9B14A41-7625-462B-B090-92F1FFF3E2FD, OS:11.2, name:Apple Watch Ultra 2 (49mm) }
		{ platform:watchOS Simulator, id:B9B14A41-7625-462B-B090-92F1FFF3E2FD, OS:11.2, name:Apple Watch Ultra 2 (49mm) }
		{ platform:iOS Simulator, id:76436B93-6F08-4C87-B885-B424838A33F2, OS:18.3.1, name:iPad (10th generation) }
		{ platform:iOS Simulator, id:76436B93-6F08-4C87-B885-B424838A33F2, OS:18.3.1, name:iPad (10th generation) }
		{ platform:iOS Simulator, id:480F6223-168A-4D04-B9AD-9A7A7DD3794C, OS:18.3.1, name:iPad (A16) }
		{ platform:iOS Simulator, id:480F6223-168A-4D04-B9AD-9A7A7DD3794C, OS:18.3.1, name:iPad (A16) }
		{ platform:iOS Simulator, id:CB510D30-AEAA-431C-B367-55BDB201AD64, OS:18.3.1, name:iPad Air 11-inch (M2) }
		{ platform:iOS Simulator, id:CB510D30-AEAA-431C-B367-55BDB201AD64, OS:18.3.1, name:iPad Air 11-inch (M2) }
		{ platform:iOS Simulator, id:B8768DBE-52AA-4F4B-88F1-5CDDF2C7BCC1, OS:18.3.1, name:iPad Air 11-inch (M3) }
		{ platform:iOS Simulator, id:B8768DBE-52AA-4F4B-88F1-5CDDF2C7BCC1, OS:18.3.1, name:iPad Air 11-inch (M3) }
		{ platform:iOS Simulator, id:BC978605-9CBB-45DF-9D63-1AF39A83A7A3, OS:18.3.1, name:iPad Air 13-inch (M2) }
		{ platform:iOS Simulator, id:BC978605-9CBB-45DF-9D63-1AF39A83A7A3, OS:18.3.1, name:iPad Air 13-inch (M2) }
		{ platform:iOS Simulator, id:58A3DAF4-CAB8-4DF2-BAF3-5275F342B6C3, OS:18.3.1, name:iPad Air 13-inch (M3) }
		{ platform:iOS Simulator, id:58A3DAF4-CAB8-4DF2-BAF3-5275F342B6C3, OS:18.3.1, name:iPad Air 13-inch (M3) }
		{ platform:iOS Simulator, id:75319040-9078-4BE5-96EE-E24EAD5685B6, OS:18.3.1, name:iPad Pro 11-inch (M4) }
		{ platform:iOS Simulator, id:75319040-9078-4BE5-96EE-E24EAD5685B6, OS:18.3.1, name:iPad Pro 11-inch (M4) }
		{ platform:iOS Simulator, id:C40A12D4-2784-4D3F-9A25-802DADAA9E30, OS:18.3.1, name:iPad Pro 13-inch (M4) }
		{ platform:iOS Simulator, id:C40A12D4-2784-4D3F-9A25-802DADAA9E30, OS:18.3.1, name:iPad Pro 13-inch (M4) }
		{ platform:iOS Simulator, id:F6F069B4-9FC6-4E56-B56D-0B3B3CEA9A68, OS:18.3.1, name:iPad mini (A17 Pro) }
		{ platform:iOS Simulator, id:F6F069B4-9FC6-4E56-B56D-0B3B3CEA9A68, OS:18.3.1, name:iPad mini (A17 Pro) }
		{ platform:iOS Simulator, id:D3125B1C-C605-4AB9-B073-5452743AB463, OS:18.3.1, name:iPhone 16 }
		{ platform:iOS Simulator, id:D3125B1C-C605-4AB9-B073-5452743AB463, OS:18.3.1, name:iPhone 16 }
		{ platform:iOS Simulator, id:31BE0FD2-CB6A-4603-B0AA-E5F11095F5AE, OS:18.3.1, name:iPhone 16 Plus }
		{ platform:iOS Simulator, id:31BE0FD2-CB6A-4603-B0AA-E5F11095F5AE, OS:18.3.1, name:iPhone 16 Plus }
		{ platform:iOS Simulator, id:3F70F745-FEF2-4BDA-8C2F-23A862D1DBD7, OS:18.3.1, name:iPhone 16 Pro }
		{ platform:iOS Simulator, id:3F70F745-FEF2-4BDA-8C2F-23A862D1DBD7, OS:18.3.1, name:iPhone 16 Pro }
		{ platform:iOS Simulator, id:CF3A649E-685B-456C-A1BA-D8FF3DA2AC95, OS:18.3.1, name:iPhone 16 Pro Max }
		{ platform:iOS Simulator, id:CF3A649E-685B-456C-A1BA-D8FF3DA2AC95, OS:18.3.1, name:iPhone 16 Pro Max }
		{ platform:iOS Simulator, id:832715B1-B3F4-4967-9063-0FB3E4548632, OS:18.3.1, name:iPhone 16e }
		{ platform:iOS Simulator, id:832715B1-B3F4-4967-9063-0FB3E4548632, OS:18.3.1, name:iPhone 16e }
		{ platform:iOS Simulator, id:6ECC8606-D7C2-48C9-A557-230425CEA9FA, OS:18.3.1, name:iPhone SE (3rd generation) }
		{ platform:iOS Simulator, id:6ECC8606-D7C2-48C9-A557-230425CEA9FA, OS:18.3.1, name:iPhone SE (3rd generation) }
INFRASTRUCTURE ERROR (status: destinationUnavailable