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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 swifit-learn with Swift 5.10 for macOS (Xcode) using Xcode 15.4.

Build Command

Build command unavailable

Build Log

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RunAll
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Builder version: 4.29.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/t-ae/swifit-learn.git
Reference: 0.0.1
Initialized empty Git repository in /Users/admin/builds/J1XnyXFH/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/.git/
From https://github.com/t-ae/swifit-learn
 * tag               0.0.1      -> FETCH_HEAD
HEAD is now at dfbc013 Implement RandomForestClassifier
Cloned https://github.com/t-ae/swifit-learn.git
Revision (git rev-parse @):
dfbc013bc6c31f1598e8d522024a151bd8be87d0
SUCCESS checkout https://github.com/t-ae/swifit-learn.git at 0.0.1
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Build
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Selected platform:         macosXcodebuild
Swift version:             5.10
Building package at path:  $workDir
https://github.com/t-ae/swifit-learn.git
Command line invocation:
    /Applications/Xcode-15.3.0-Beta.2.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builds/J1XnyXFH/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
User defaults from command line:
    IDEClonedSourcePackagesDirPathOverride = /Users/admin/builds/J1XnyXFH/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/.dependencies
    IDEPackageSupportUseBuiltinSCM = YES
Resolve Package Graph
package 'spi-builder-workspace' is using Swift tools version 3.1.0 which is no longer supported; consider using '// swift-tools-version: 5.10' to specify the current tools version
Resolved source packages:
  spi-builder-workspace: /Users/admin/builds/J1XnyXFH/1/finestructure/swiftpackageindex-builder/spi-builder-workspace
Resolve Package Graph
package 'spi-builder-workspace' is using Swift tools version 3.1.0 which is no longer supported; consider using '// swift-tools-version: 5.10' to specify the current tools version
2024-02-14 14:16:22.100 xcodebuild[63054:8536328] Requested but did not find extension point with identifier Xcode.DVTDeviceFoundation.Aspect for extension Xcode.IDEiOSSupportCore.Aspect.NBDD of plug-in com.apple.dt.IDE.IDEiOSSupportCore
2024-02-14 14:16:22.525 xcodebuild[63054:8536328] Writing error result bundle to /var/folders/c2/b2kmn__12wq57m82ltz0hl1w0000gn/T/ResultBundle_2024-14-02_14-16-0022.xcresult
2024-02-14 14:16:22.621 xcodebuild[63054:8536328] [MT] DVTPlugInQuery: Requested but did not find extension point with identifier 'Xcode.DVTDeviceFoundation.CompatibleDeviceFamilyPair'. This is programmer error; code should only request extension points that are defined by itself or its dependencies.
2024-02-14 14:16:23.459 xcodebuild[63054:8536328] [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: 0x600002db90e0>
Method:   -deleteRunContexts:completionQueue:completionBlock:
Thread:   <_NSMainThread: 0x6000009a4180>{number = 1, name = main}
Please file a bug at https://feedbackassistant.apple.com with this warning message and any useful information you can provide.
2024-02-14 14:16:23.460 xcodebuild[63054:8536328] 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 3.1.0 which is no longer supported; consider using '// swift-tools-version: 5.10' to specify the current tools version
GENERIC FAILURE 5.10 macosXcodebuild