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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 SourceMapper 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/SourceMapper.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/johnfairh/SourceMapper
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 8fb4bd6 Move CI to Swift 6.1 (#8)
Cloned https://github.com/johnfairh/SourceMapper.git
Revision (git rev-parse @):
8fb4bd6d9eeb064a77642d61b75d396127b71741
SUCCESS checkout https://github.com/johnfairh/SourceMapper.git at main
========================================
Build
========================================
Selected platform:         visionOS
Swift version:             6.0
Building package at path:  $PWD
https://github.com/johnfairh/SourceMapper.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
resolved source packages:
{
  "dependencies" : [
  ],
  "manifest_display_name" : "SourceMapper",
  "name" : "SourceMapper",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "SourceMapper",
      "targets" : [
        "SourceMapper"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "srcmapcat",
      "targets" : [
        "Cli"
      ],
      "type" : {
        "executable" : null
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SourceMapperTests",
      "module_type" : "SwiftTarget",
      "name" : "SourceMapperTests",
      "path" : "Tests/SourceMapperTests",
      "sources" : [
        "TestBasics.swift",
        "TestHelpers.swift",
        "TestJSON.swift",
        "TestMappings.swift",
        "TestVLQ.swift"
      ],
      "target_dependencies" : [
        "SourceMapper"
      ],
      "type" : "test"
    },
    {
      "c99name" : "SourceMapper",
      "module_type" : "SwiftTarget",
      "name" : "SourceMapper",
      "path" : "Sources/SourceMapper",
      "product_memberships" : [
        "SourceMapper",
        "srcmapcat"
      ],
      "sources" : [
        "Errors.swift",
        "JSON.swift",
        "Mappings.swift",
        "SourceMap.swift",
        "UnpackedSourceMap.swift",
        "VLQ.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "Cli",
      "module_type" : "SwiftTarget",
      "name" : "Cli",
      "path" : "Sources/Cli",
      "product_memberships" : [
        "srcmapcat"
      ],
      "sources" : [
        "main.swift"
      ],
      "target_dependencies" : [
        "SourceMapper"
      ],
      "type" : "executable"
    }
  ],
  "tools_version" : "6.0"
}
{
  "project" : {
    "configurations" : [
      "Debug",
      "Release"
    ],
    "name" : "SourceMapper",
    "schemes" : [
      "SourceMapper-Package"
    ],
    "targets" : [
      "SourceMapper",
      "SourceMapperTests",
      "Cli"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.2.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme SourceMapper-Package -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 SourceMapper-Package -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
2025-04-29 08:31:04.017 xcodebuild[604:3433] Writing error result bundle to /var/folders/5k/5yc19ymj0jqd5v0zvgfqz0xw0000gn/T/ResultBundle_2025-29-04_08-31-0004.xcresult
xcodebuild: error: Unable to find a destination matching the provided destination specifier:
		{ generic:1, platform:xrOS }
	Available destinations for the "SourceMapper-Package" scheme:
		{ platform:macOS, arch:arm64, id:97886a1359f2dcb880658dd70a80039c58c7a14a, name:My Mac }
		{ platform:macOS, arch:x86_64, id:97886a1359f2dcb880658dd70a80039c58c7a14a, 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