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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 Flock with Swift 5.10 for iOS 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/jakeheis/flock.git
Reference: 0.5.0
Initialized empty Git repository in /Users/admin/builds/J1XnyXFH/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/.git/
From https://github.com/jakeheis/flock
 * tag               0.5.0      -> FETCH_HEAD
HEAD is now at e7ebcd5 Check command
Cloned https://github.com/jakeheis/flock.git
Revision (git rev-parse @):
e7ebcd5279bfb95b0e66b15d07a868b244ab4883
SUCCESS checkout https://github.com/jakeheis/flock.git at 0.5.0
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Build
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Selected platform:         iOS
Swift version:             5.10
Building package at path:  $workDir
https://github.com/jakeheis/flock.git
Command line invocation:
    /Applications/Xcode-15.3.0-Beta.2.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builds/J1XnyXFH/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
User defaults from command line:
    IDEClonedSourcePackagesDirPathOverride = /Users/admin/builds/J1XnyXFH/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/.dependencies
    IDEPackageSupportUseBuiltinSCM = YES
Resolve Package Graph
Fetching from https://github.com/norio-nomura/Clang_C.git (cached)
Fetching from https://github.com/jakeheis/Shout (cached)
Fetching from https://github.com/onevcat/Rainbow (cached)
Fetching from https://github.com/yonaskolb/Beak (cached)
Fetching from https://github.com/Carthage/Commandant.git (cached)
Fetching from https://github.com/jakeheis/CSSH (cached)
Fetching from https://github.com/kylef/Spectre.git (cached)
Fetching from https://github.com/IBM-Swift/BlueSocket (cached)
Fetching from https://github.com/Quick/Quick.git (cached)
Fetching from https://github.com/jpsim/SourceKitten (cached)
Fetching from https://github.com/norio-nomura/SourceKit.git (cached)
Fetching from https://github.com/Quick/Nimble.git (cached)
Fetching from https://github.com/drmohundro/SWXMLHash.git (cached)
Fetching from https://github.com/jakeheis/SwiftCLI (cached)
Fetching from https://github.com/antitypical/Result.git (cached)
Fetching from https://github.com/jpsim/Yams.git (cached)
Fetching from https://github.com/kylef/PathKit.git (cached)
the Swift tools version specification is missing a label; consider inserting 'swift-tools-version:' between the comment marker and the version specifier
Resolved source packages:
  Flock: /Users/admin/builds/J1XnyXFH/0/finestructure/swiftpackageindex-builder/spi-builder-workspace
2024-02-14 01:53:22.739 xcodebuild[94887:3822871] 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 01:53:24.804 xcodebuild[94887:3822871] Writing error result bundle to /var/folders/c2/b2kmn__12wq57m82ltz0hl1w0000gn/T/ResultBundle_2024-14-02_01-53-0024.xcresult
2024-02-14 01:53:24.905 xcodebuild[94887:3822871] [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.
xcodebuild: error: Could not resolve package dependencies:
  the Swift tools version specification is missing a label; consider inserting 'swift-tools-version:' between the comment marker and the version specifier
GENERIC FAILURE 5.10 iOS