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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 icu-swift 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/allevato/icu-swift.git
Reference: 0.2.0
Initialized empty Git repository in /Users/builder/builds/UKfvDsi8u/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/.git/
From https://github.com/allevato/icu-swift
 * tag               0.2.0      -> FETCH_HEAD
HEAD is now at e66774c Update changelog for 0.2.0
Cloned https://github.com/allevato/icu-swift.git
Revision (git rev-parse @):
e66774c1f0d10f12d3961c7a8a9f2f52ba58781a
SUCCESS checkout https://github.com/allevato/icu-swift.git at 0.2.0
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Build
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Selected platform:         watchOS
Swift version:             5.10
Building package at path:  $workDir
https://github.com/allevato/icu-swift.git
Command line invocation:
    /Applications/Xcode-15.3.0-Beta.2.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/builder/builds/UKfvDsi8u/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
User defaults from command line:
    IDEClonedSourcePackagesDirPathOverride = /Users/builder/builds/UKfvDsi8u/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/.dependencies
    IDEPackageSupportUseBuiltinSCM = YES
Resolve Package Graph
Fetching from https://github.com/allevato/icu4c-swift (cached)
the Swift tools version specification's label 'Copyright' is misspelt; consider replacing it with 'swift-tools-version:'
Resolved source packages:
  icu-swift: /Users/builder/builds/UKfvDsi8u/2/finestructure/swiftpackageindex-builder/spi-builder-workspace
Resolve Package Graph
Updating from https://github.com/allevato/icu4c-swift
the Swift tools version specification's label 'Copyright' is misspelt; consider replacing it with 'swift-tools-version:'
2024-02-14 07:04:22.355 xcodebuild[78225:1398978] 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 07:04:23.106 xcodebuild[78225:1398978] Writing error result bundle to /var/folders/b3/8p5yvk0d16s637btgmtl295m0000gp/T/ResultBundle_2024-14-02_07-04-0023.xcresult
2024-02-14 07:04:23.199 xcodebuild[78225:1398978] [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's label 'Copyright' is misspelt; consider replacing it with 'swift-tools-version:'
GENERIC FAILURE 5.10 watchOS