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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 Localize with Swift 6.0 for macOS (Xcode) using Xcode 16.2.

Build Command

Build command unavailable

Build Log

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RunAll
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Builder version: 4.58.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/andresilvagomez/Localize.git
Reference: 2.3.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/andresilvagomez/Localize
 * tag               2.3.0      -> FETCH_HEAD
HEAD is now at 203b315 Added pluralize
Cloned https://github.com/andresilvagomez/Localize.git
Revision (git rev-parse @):
203b31559cc8fe2f63016d5a96c1e539c7ab24bb
SUCCESS checkout https://github.com/andresilvagomez/Localize.git at 2.3.0
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Build
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Selected platform:         macosXcodebuild
Swift version:             6.0
Building package at path:  $PWD
https://github.com/andresilvagomez/Localize.git
Command line invocation:
    /Applications/Xcode-16.1.0.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
resolved source packages:
error: 'spi-builder-workspace': the Swift tools version specification is possibly missing a version specifier; consider using '// swift-tools-version: 6.0.2' to specify the current Swift toolchain version as the lowest Swift version supported by the project
error: fatalError
GENERIC FAILURE 6.0 macosXcodebuild