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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 Shift with Swift 6.0 for visionOS using Xcode 16.2.

Build Command

Build command unavailable

Build Log

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RunAll
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Builder version: 4.60.1
Interrupt handler set up.
========================================
Checkout
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Clone URL: https://github.com/vinhnx/Shift.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/vinhnx/Shift
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 4162aab Merge pull request #16 from vinhnx/vinhnx-patch-2
Cloned https://github.com/vinhnx/Shift.git
Revision (git rev-parse @):
4162aab0e4096252c18fe4b01b4af23456a0f7bb
SUCCESS checkout https://github.com/vinhnx/Shift.git at main
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Build
========================================
Selected platform:         visionOS
Swift version:             6.0
Building package at path:  $PWD
https://github.com/vinhnx/Shift.git
https://github.com/vinhnx/Shift.git
{
  "dependencies" : [
    {
      "identity" : "swift-algorithms",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.0.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-algorithms"
    }
  ],
  "manifest_display_name" : "Shift",
  "name" : "Shift",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "15.0"
    },
    {
      "name" : "macos",
      "version" : "12.0"
    },
    {
      "name" : "watchos",
      "version" : "8.0"
    }
  ],
  "products" : [
    {
      "name" : "Shift",
      "targets" : [
        "Shift"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "ShiftTests",
      "module_type" : "SwiftTarget",
      "name" : "ShiftTests",
      "path" : "Tests/ShiftTests",
      "sources" : [
        "EventKitWrapperTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "Shift"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Shift",
      "module_type" : "SwiftTarget",
      "name" : "Shift",
      "path" : "Sources/Shift",
      "product_dependencies" : [
        "Algorithms"
      ],
      "product_memberships" : [
        "Shift"
      ],
      "sources" : [
        "Shift.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.5"
}
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" : [
    {
      "identity" : "swift-algorithms",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.0.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-algorithms"
    }
  ],
  "manifest_display_name" : "Shift",
  "name" : "Shift",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "15.0"
    },
    {
      "name" : "macos",
      "version" : "12.0"
    },
    {
      "name" : "watchos",
      "version" : "8.0"
    }
  ],
  "products" : [
    {
      "name" : "Shift",
      "targets" : [
        "Shift"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "ShiftTests",
      "module_type" : "SwiftTarget",
      "name" : "ShiftTests",
      "path" : "Tests/ShiftTests",
      "sources" : [
        "EventKitWrapperTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "Shift"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Shift",
      "module_type" : "SwiftTarget",
      "name" : "Shift",
      "path" : "Sources/Shift",
      "product_dependencies" : [
        "Algorithms"
      ],
      "product_memberships" : [
        "Shift"
      ],
      "sources" : [
        "Shift.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.5"
}
{
  "project" : {
    "configurations" : [
      "Debug",
      "Release"
    ],
    "name" : "Shift",
    "schemes" : [
      "Shift-Package"
    ],
    "targets" : [
      "Shift",
      "ShiftPackageDescription",
      "ShiftPackageTests",
      "ShiftTests"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.2.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme Shift-Package -destination generic/platform=xrOS 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-16.2.0.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 Shift-Package -destination generic/platform=xrOS "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"
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 -strict-concurrency=complete -enable-upcoming-feature StrictConcurrency -enable-upcoming-feature DisableOutwardActorInference -enable-upcoming-feature GlobalActorIsolatedTypesUsability -enable-upcoming-feature InferSendableFromCaptures
2025-03-20 12:20:44.963 xcodebuild[628:3616] Writing error result bundle to /var/folders/fs/0w3t9t1d28xc3bj0tgb8hcrw0000gn/T/ResultBundle_2025-20-03_12-20-0044.xcresult
xcodebuild: error: Unable to find a destination matching the provided destination specifier:
		{ generic:1, platform:xrOS }
	Available destinations for the "Shift-Package" scheme:
		{ platform:macOS, arch:arm64, id:0000FE00-8C151E3703BE51BE, name:My Mac }
		{ platform:macOS, arch:x86_64, id:0000FE00-8C151E3703BE51BE, 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 }
INFRASTRUCTURE ERROR (status: destinationUnavailable