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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 watchOS 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: master
Initialized empty Git repository in /Users/admin/builds/J1XnyXFH/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/.git/
From https://github.com/jakeheis/flock
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at d61e7fd Update README
Cloned https://github.com/jakeheis/flock.git
Revision (git rev-parse @):
d61e7fd3ef4f731382fca192976682953784be13
SUCCESS checkout https://github.com/jakeheis/flock.git at master
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Build
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Selected platform:         watchOS
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/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
Fetching from https://github.com/norio-nomura/SourceKit.git (cached)
Fetching from https://github.com/kylef/Spectre.git (cached)
Fetching from https://github.com/antitypical/Result.git (cached)
Fetching from https://github.com/jakeheis/Shout (cached)
Fetching from https://github.com/jpsim/SourceKitten (cached)
Fetching from https://github.com/jakeheis/SwiftCLI (cached)
Fetching from https://github.com/yonaskolb/Beak (cached)
Fetching from https://github.com/norio-nomura/Clang_C.git (cached)
Fetching from https://github.com/kylef/PathKit.git (cached)
Fetching from https://github.com/jakeheis/CSSH (cached)
Fetching from https://github.com/Carthage/Commandant.git (cached)
Fetching from https://github.com/Quick/Nimble.git (cached)
Fetching from https://github.com/Quick/Quick.git (cached)
Fetching from https://github.com/onevcat/Rainbow (cached)
Fetching from https://github.com/IBM-Swift/BlueSocket (cached)
Fetching from https://github.com/jpsim/Yams.git (cached)
Fetching from https://github.com/drmohundro/SWXMLHash.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/1/finestructure/swiftpackageindex-builder/spi-builder-workspace
Resolve Package Graph
Updating from https://github.com/yonaskolb/Beak
Updating from https://github.com/drmohundro/SWXMLHash.git
Updating from https://github.com/jakeheis/Shout
Updating from https://github.com/Quick/Nimble.git
Updating from https://github.com/kylef/Spectre.git
Updating from https://github.com/Quick/Quick.git
Updating from https://github.com/norio-nomura/SourceKit.git
Updating from https://github.com/onevcat/Rainbow
Updating from https://github.com/jpsim/Yams.git
Updating from https://github.com/norio-nomura/Clang_C.git
Updating from https://github.com/Carthage/Commandant.git
Updating from https://github.com/antitypical/Result.git
Updating from https://github.com/jpsim/SourceKitten
Fetching from https://github.com/IBM-Swift/BlueSocket (cached)
Updating from https://github.com/kylef/PathKit.git
Updating from https://github.com/jakeheis/CSSH
Fetching from https://github.com/jakeheis/SwiftCLI (cached)
the Swift tools version specification is missing a label; consider inserting 'swift-tools-version:' between the comment marker and the version specifier/Users/admin/builds/J1XnyXFH/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/.dependencies/repositories/BlueSocket-663f67d0 is not valid git repository for 'https://github.com/IBM-Swift/BlueSocket', will fetch again./Users/admin/builds/J1XnyXFH/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/.dependencies/repositories/SwiftCLI-83761b15 is not valid git repository for 'https://github.com/jakeheis/SwiftCLI', will fetch again.
2024-02-14 01:53:37.426 xcodebuild[99644:3832236] 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 01:53:39.274 xcodebuild[99644:3832236] Writing error result bundle to /var/folders/c2/b2kmn__12wq57m82ltz0hl1w0000gn/T/ResultBundle_2024-14-02_01-53-0039.xcresult
2024-02-14 01:53:39.370 xcodebuild[99644:3832236] [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 watchOS