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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 macOS (SPM).

Build Command

env DEVELOPER_DIR=/Applications/Xcode-15.3.0-Beta.2.app xcrun swift build --arch arm64

Build Log

========================================
RunAll
========================================
Builder version: 4.29.0
Interrupt handler set up.
========================================
Checkout
========================================
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
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             5.10
Building package at path:  $workDir
https://github.com/jakeheis/flock.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-15.3.0-Beta.2.app xcrun swift build --arch arm64
Fetching https://github.com/kylef/PathKit.git from cache
Fetching https://github.com/IBM-Swift/BlueSocket from cache
Fetching https://github.com/kylef/Spectre.git from cache
Fetching https://github.com/jakeheis/CSSH from cache
Fetching https://github.com/norio-nomura/Clang_C.git from cache
Fetching https://github.com/jakeheis/SwiftCLI from cache
Fetched https://github.com/kylef/Spectre.git from cache (0.20s)
Fetched https://github.com/kylef/PathKit.git from cache (0.20s)
Fetching https://github.com/onevcat/Rainbow from cache
Fetched https://github.com/jakeheis/CSSH from cache (0.20s)
Fetching https://github.com/Quick/Quick.git from cache
Fetching https://github.com/Carthage/Commandant.git from cache
Fetched https://github.com/IBM-Swift/BlueSocket from cache (0.24s)
Fetched https://github.com/jakeheis/SwiftCLI from cache (0.24s)
Fetching https://github.com/jpsim/SourceKitten from cache
Fetching https://github.com/jakeheis/Shout from cache
Fetched https://github.com/norio-nomura/Clang_C.git from cache (0.24s)
Fetching https://github.com/Quick/Nimble.git from cache
Fetched https://github.com/jakeheis/Shout from cache (0.20s)
Fetching https://github.com/norio-nomura/SourceKit.git from cache
Fetched https://github.com/jpsim/SourceKitten from cache (0.20s)
Fetching https://github.com/antitypical/Result.git from cache
Fetched https://github.com/Quick/Nimble.git from cache (0.20s)
Fetching https://github.com/drmohundro/SWXMLHash.git from cache
Fetched https://github.com/onevcat/Rainbow from cache (0.27s)
Fetching https://github.com/yonaskolb/Beak from cache
Fetched https://github.com/Carthage/Commandant.git from cache (0.27s)
Fetching https://github.com/jpsim/Yams.git from cache
Fetched https://github.com/Quick/Quick.git from cache (0.27s)
Fetched https://github.com/drmohundro/SWXMLHash.git from cache (0.16s)
Fetched https://github.com/antitypical/Result.git from cache (0.19s)
Fetched https://github.com/norio-nomura/SourceKit.git from cache (0.19s)
Fetched https://github.com/yonaskolb/Beak from cache (0.17s)
Computing version for https://github.com/jakeheis/SwiftCLI
Fetched https://github.com/jpsim/Yams.git from cache (0.17s)
Computed https://github.com/jakeheis/SwiftCLI at 5.1.2 (0.49s)
Computing version for https://github.com/jakeheis/Shout
Computed https://github.com/jakeheis/Shout at 0.4.3 (0.37s)
Computing version for https://github.com/onevcat/Rainbow
Computed https://github.com/onevcat/Rainbow at 3.1.4 (0.35s)
Computing version for https://github.com/yonaskolb/Beak
Computed https://github.com/yonaskolb/Beak at 0.4.0 (0.44s)
Computing version for https://github.com/jakeheis/CSSH
Computed https://github.com/jakeheis/CSSH at 1.0.3 (0.35s)
Computing version for https://github.com/IBM-Swift/BlueSocket
error: the Swift tools version specification is missing a label; consider inserting 'swift-tools-version:' between the comment marker and the version specifier
Updating https://github.com/Quick/Quick.git
Updating https://github.com/jakeheis/Shout
Updating https://github.com/kylef/PathKit.git
Updating https://github.com/norio-nomura/SourceKit.git
Updating https://github.com/jpsim/SourceKitten
Updating https://github.com/kylef/Spectre.git
Updated https://github.com/jakeheis/Shout (0.20s)
Updated https://github.com/jpsim/SourceKitten (0.20s)
Updated https://github.com/norio-nomura/SourceKit.git (0.20s)
Updated https://github.com/kylef/Spectre.git (0.20s)
Updating https://github.com/yonaskolb/Beak
Updating https://github.com/drmohundro/SWXMLHash.git
Updating https://github.com/Carthage/Commandant.git
warning: 'swiftcli': /Users/admin/builds/J1XnyXFH/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/.build/repositories/SwiftCLI-83761b15 is not valid git repository for 'https://github.com/jakeheis/SwiftCLI', will fetch again.
Fetching https://github.com/jakeheis/SwiftCLI from cache
Updated https://github.com/kylef/PathKit.git (0.26s)
Updated https://github.com/Quick/Quick.git (0.26s)
Updating https://github.com/onevcat/Rainbow
Updating https://github.com/jpsim/Yams.git
Fetched https://github.com/jakeheis/SwiftCLI from cache (0.16s)
Updated https://github.com/drmohundro/SWXMLHash.git (0.18s)
Updating https://github.com/antitypical/Result.git
Updating https://github.com/jakeheis/CSSH
Updated https://github.com/Carthage/Commandant.git (0.20s)
Updated https://github.com/yonaskolb/Beak (0.20s)
Updated https://github.com/onevcat/Rainbow (0.15s)
Computing version for https://github.com/jakeheis/SwiftCLI
Updating https://github.com/Quick/Nimble.git
warning: 'bluesocket': /Users/admin/builds/J1XnyXFH/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/.build/repositories/BlueSocket-663f67d0 is not valid git repository for 'https://github.com/IBM-Swift/BlueSocket', will fetch again.
Fetching https://github.com/IBM-Swift/BlueSocket from cache
Updating https://github.com/norio-nomura/Clang_C.git
Computed https://github.com/jakeheis/SwiftCLI at 5.1.2 (0.04s)
Computing version for https://github.com/jakeheis/Shout
Updated https://github.com/jpsim/Yams.git (0.21s)
Computed https://github.com/jakeheis/Shout at 0.4.3 (0.02s)
Updated https://github.com/jakeheis/CSSH (0.15s)
Updated https://github.com/norio-nomura/Clang_C.git (0.16s)
Updated https://github.com/antitypical/Result.git (0.23s)
Fetched https://github.com/IBM-Swift/BlueSocket from cache (0.20s)
Computing version for https://github.com/onevcat/Rainbow
Updated https://github.com/Quick/Nimble.git (0.22s)
Computed https://github.com/onevcat/Rainbow at 3.1.4 (0.03s)
Computing version for https://github.com/yonaskolb/Beak
Computed https://github.com/yonaskolb/Beak at 0.4.0 (0.03s)
Computing version for https://github.com/jakeheis/CSSH
Computed https://github.com/jakeheis/CSSH at 1.0.3 (0.02s)
Computing version for https://github.com/IBM-Swift/BlueSocket
error: the Swift tools version specification is missing a label; consider inserting 'swift-tools-version:' between the comment marker and the version specifier
BUILD FAILURE 5.10 macosSpm