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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 ReadyForSwift6Test with Swift 5.9 for watchOS using Xcode 15.2.

Build Command

Build command unavailable

Build Log

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RunAll
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Builder version: 4.37.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/SwiftPackageIndex/ReadyForSwift6Test.git
Reference: 1.0.0
Initialized empty Git repository in /Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/.git/
From https://github.com/SwiftPackageIndex/ReadyForSwift6Test
 * tag               1.0.0      -> FETCH_HEAD
HEAD is now at 30d962e Update README
Cloned https://github.com/SwiftPackageIndex/ReadyForSwift6Test.git
Revision (git rev-parse @):
30d962e2e0dd0855a7e934a85a9b490f68d8e91b
SUCCESS checkout https://github.com/SwiftPackageIndex/ReadyForSwift6Test.git at 1.0.0
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Build
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Selected platform:         watchOS
Swift version:             5.9
Building package at path:  $workDir
https://github.com/SwiftPackageIndex/ReadyForSwift6Test.git
Command line invocation:
    /Applications/Xcode-15.2.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
User defaults from command line:
    IDEClonedSourcePackagesDirPathOverride = /Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/.dependencies
    IDEPackageSupportUseBuiltinSCM = YES
Resolve Package Graph
package 'spi-builder-workspace' is using Swift tools version 5.10.0 but the installed version is 5.9.0
Resolved source packages:
  spi-builder-workspace: /Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace
Resolve Package Graph
package 'spi-builder-workspace' is using Swift tools version 5.10.0 but the installed version is 5.9.0
objc[93485]: Class XROS1_1SimRuntime is implemented in both /Library/Developer/CoreSimulator/Volumes/xrOS_21O209/Library/Developer/CoreSimulator/Profiles/Runtimes/xrOS 1.1.simruntime/Contents/MacOS/xrOS 1.1 (0x10de3c0e0) and /Library/Developer/CoreSimulator/Volumes/xrOS_21O5181e/Library/Developer/CoreSimulator/Profiles/Runtimes/xrOS 1.1.simruntime/Contents/MacOS/xrOS 1.1 (0x10f1640e0). One of the two will be used. Which one is undefined.
2024-04-27 06:36:26.462 xcodebuild[93485:14669371] Writing error result bundle to /var/folders/b3/8p5yvk0d16s637btgmtl295m0000gp/T/ResultBundle_2024-27-04_06-36-0026.xcresult
2024-04-27 06:36:27.432 xcodebuild[93485:14669371] [MT] DVTAssertions: Warning in IDEFrameworks/IDEFoundation/Execution/RunContextManager/IDERunContextManager.m:848
Details:  Error deleting scheme: Cannot modify data because the process disallows saving.
Object:   <IDERunContextManager: 0x60000388fd50>
Method:   -deleteRunContexts:completionQueue:completionBlock:
Thread:   <_NSMainThread: 0x600001fbc200>{number = 1, name = main}
Please file a bug at https://feedbackassistant.apple.com with this warning message and any useful information you can provide.
2024-04-27 06:36:27.436 xcodebuild[93485:14669371] could not delete old scheme: Error Domain=DVTCustomDataStoringErrors Code=0 "Cannot modify data because the process disallows saving." UserInfo={NSLocalizedDescription=Cannot modify data because the process disallows saving.}
xcodebuild: error: Could not resolve package dependencies:
  package 'spi-builder-workspace' is using Swift tools version 5.10.0 but the installed version is 5.9.0
GENERIC FAILURE 5.9 watchOS