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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 Lightning with Swift 6.0 for iOS using Xcode 16.0.

Build Command

Build command unavailable

Build Log

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RunAll
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Builder version: 4.56.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/skylab-inc/lightning.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/skylab-inc/lightning
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at e2649af Refactored and added more tests
Cloned https://github.com/skylab-inc/lightning.git
Revision (git rev-parse @):
e2649af0c70347ee0d4a7d863b8e86e8c98136f8
SUCCESS checkout https://github.com/skylab-inc/lightning.git at master
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Build
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Selected platform:         iOS
Swift version:             6.0
Building package at path:  $PWD
https://github.com/skylab-inc/lightning.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
Resolve Package Graph
Fetching from https://github.com/crossroadlabs/Regex.git
Fetching from https://github.com/skylab-inc/PathToRegex.git
the Swift tools version specification is possibly missing a version specifier; consider using '// swift-tools-version: 6.0' to specify the current Swift toolchain version as the lowest Swift version supported by the project in https://github.com/skylab-inc/PathToRegex.gitResolve Package Graph
Updating from https://github.com/crossroadlabs/Regex.git
Updating from https://github.com/skylab-inc/PathToRegex.git
the Swift tools version specification is possibly missing a version specifier; consider using '// swift-tools-version: 6.0' to specify the current Swift toolchain version as the lowest Swift version supported by the project in https://github.com/skylab-inc/PathToRegex.gitResolve Package Graph
Updating from https://github.com/crossroadlabs/Regex.git
Updating from https://github.com/skylab-inc/PathToRegex.git
the Swift tools version specification is possibly missing a version specifier; consider using '// swift-tools-version: 6.0' to specify the current Swift toolchain version as the lowest Swift version supported by the project in https://github.com/skylab-inc/PathToRegex.gitResolve Package Graph
Updating from https://github.com/crossroadlabs/Regex.git
Updating from https://github.com/skylab-inc/PathToRegex.git
the Swift tools version specification is possibly missing a version specifier; consider using '// swift-tools-version: 6.0' to specify the current Swift toolchain version as the lowest Swift version supported by the project in https://github.com/skylab-inc/PathToRegex.git
Resolved source packages:
  spi-builder-workspace: (null)
2024-10-31 03:13:46.743 xcodebuild[464:2558] Writing error result bundle to /var/folders/fs/0w3t9t1d28xc3bj0tgb8hcrw0000gn/T/ResultBundle_2024-31-10_03-13-0046.xcresult
xcodebuild: error: Could not resolve package dependencies:
  the Swift tools version specification is possibly missing a version specifier; consider using '// swift-tools-version: 6.0' to specify the current Swift toolchain version as the lowest Swift version supported by the project in https://github.com/skylab-inc/PathToRegex.git
GENERIC FAILURE 6.0 iOS