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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 Unidoc, reference master (c76ded), with Swift 5.10 for visionOS using Xcode 15.4 on 23 Mar 2025 03:42:14 UTC.

Build Command

No build command. This typically means the build failed at an early stage where we determine the build command.

Build Log

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RunAll
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Builder version: 4.60.1
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/tayloraswift/swift-unidoc.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/tayloraswift/swift-unidoc
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at c76deda Merge pull request #414 from tayloraswift/direct-link-articles
Cloned https://github.com/tayloraswift/swift-unidoc.git
Revision (git rev-parse @):
c76dedae6522c80997efb567da0f361d4e73e355
SUCCESS checkout https://github.com/tayloraswift/swift-unidoc.git at master
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Build
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Selected platform:         visionOS
Swift version:             5.10
Building package at path:  $PWD
https://github.com/tayloraswift/swift-unidoc.git
Command line invocation:
    /Applications/Xcode-15.4.0.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
package 'spi-builder-workspace' is using Swift tools version 6.0.0 but the installed version is 5.10.0
Resolved source packages:
  spi-builder-workspace: /Users/admin/builder/spi-builder-workspace
Resolve Package Graph
package 'spi-builder-workspace' is using Swift tools version 6.0.0 but the installed version is 5.10.0
2025-03-22 23:42:11.246 xcodebuild[454:2475] Writing error result bundle to /var/folders/fs/0w3t9t1d28xc3bj0tgb8hcrw0000gn/T/ResultBundle_2025-22-03_23-42-0011.xcresult
2025-03-22 23:42:11.357 xcodebuild[454:2475] [MT] DVTAssertions: Warning in IDEFrameworks/IDEFoundation/Execution/RunContextManager/IDERunContextManager.m:857
Details:  Error deleting scheme: Cannot modify data because the process disallows saving.
Object:   <IDERunContextManager: 0x600001e7b840>
Method:   -deleteRunContexts:completionQueue:completionBlock:
Thread:   <_NSMainThread: 0x600003a68180>{number = 1, name = main}
Please file a bug at https://feedbackassistant.apple.com with this warning message and any useful information you can provide.
2025-03-22 23:42:11.359 xcodebuild[454:2475] 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 6.0.0 but the installed version is 5.10.0
Command line invocation:
    /Applications/Xcode-15.4.0.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
package 'spi-builder-workspace' is using Swift tools version 6.0.0 but the installed version is 5.10.0
Resolved source packages:
  spi-builder-workspace: /Users/admin/builder/spi-builder-workspace
2025-03-22 23:42:13.099 xcodebuild[502:2763] Writing error result bundle to /var/folders/fs/0w3t9t1d28xc3bj0tgb8hcrw0000gn/T/ResultBundle_2025-22-03_23-42-0013.xcresult
xcodebuild: error: Could not resolve package dependencies:
  package 'spi-builder-workspace' is using Swift tools version 6.0.0 but the installed version is 5.10.0
BUILD FAILURE 5.10 visionOS