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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 iOS using Xcode 15.2.

Build Command

Build command unavailable

Build Log

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RunAll
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Builder version: 4.40.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/SwiftPackageIndex/ReadyForSwift6Test.git
Reference: main
Initialized empty Git repository in /Users/builder/builds/TDmZkXJm/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/.git/
From https://github.com/SwiftPackageIndex/ReadyForSwift6Test
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 0969bd4 Update readme with language mode build command
Cloned https://github.com/SwiftPackageIndex/ReadyForSwift6Test.git
Revision (git rev-parse @):
0969bd4f78bb942d96b8ca1df466f296a67c808a
SUCCESS checkout https://github.com/SwiftPackageIndex/ReadyForSwift6Test.git at main
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Build
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Selected platform:         iOS
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/TDmZkXJm/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
User defaults from command line:
    IDEClonedSourcePackagesDirPathOverride = /Users/builder/builds/TDmZkXJm/2/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/TDmZkXJm/2/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
2024-06-06 05:36:38.370 xcodebuild[55578:2825018] Writing error result bundle to /var/folders/4f/vmvvw7xn07sg3fzsc7v7mmx40000gp/T/ResultBundle_2024-06-06_05-36-0038.xcresult
2024-06-06 05:36:39.156 xcodebuild[55578:2825018] [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: 0x600003e21cb0>
Method:   -deleteRunContexts:completionQueue:completionBlock:
Thread:   <_NSMainThread: 0x60000190c200>{number = 1, name = main}
Please file a bug at https://feedbackassistant.apple.com with this warning message and any useful information you can provide.
2024-06-06 05:36:39.160 xcodebuild[55578:2825018] 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 iOS