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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-zip-archive, reference main (16cfe4), with Swift 5.9 for visionOS using Xcode 15.2 on 5 Apr 2025 18:24:09 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/adam-fowler/swift-zip-archive.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/adam-fowler/swift-zip-archive
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 16cfe4a Use swift:6.1 (#11)
Cloned https://github.com/adam-fowler/swift-zip-archive.git
Revision (git rev-parse @):
16cfe4a2122c6a7c81a9d9443cbf6775847e20d5
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/adam-fowler/swift-zip-archive.git at main
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Build
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Selected platform:         visionOS
Swift version:             5.9
Building package at path:  $PWD
https://github.com/adam-fowler/swift-zip-archive.git
Command line invocation:
    /Applications/Xcode-15.2.0.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
Resolve Package Graph
package 'spi-builder-workspace' is using Swift tools version 6.0.0 but the installed version is 5.9.0
Resolve Package Graph
package 'spi-builder-workspace' is using Swift tools version 6.0.0 but the installed version is 5.9.0
Resolved source packages:
  spi-builder-workspace: /Users/admin/builder/spi-builder-workspace
2025-04-05 14:24:06.536 xcodebuild[455:2475] [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: 0x600000fa5560>
Method:   -deleteRunContexts:completionQueue:completionBlock:
Thread:   <_NSMainThread: 0x6000028b4200>{number = 1, name = main}
Please file a bug at https://feedbackassistant.apple.com with this warning message and any useful information you can provide.
2025-04-05 14:24:06.537 xcodebuild[455:2475] 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.}
2025-04-05 14:24:06.538 xcodebuild[455:2475] Writing error result bundle to /var/folders/fs/0w3t9t1d28xc3bj0tgb8hcrw0000gn/T/ResultBundle_2025-05-04_14-24-0006.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 5.9.0
Command line invocation:
    /Applications/Xcode-15.2.0.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
Resolve Package Graph
package 'spi-builder-workspace' is using Swift tools version 6.0.0 but the installed version is 5.9.0
Resolved source packages:
  spi-builder-workspace: /Users/admin/builder/spi-builder-workspace
2025-04-05 14:24:08.286 xcodebuild[502:2741] Writing error result bundle to /var/folders/fs/0w3t9t1d28xc3bj0tgb8hcrw0000gn/T/ResultBundle_2025-05-04_14-24-0008.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 5.9.0
BUILD FAILURE 5.9 visionOS