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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 MKBlockQueue, reference 1.0.4 (c28b89), with Swift 6.0 for macOS (SPM) on 31 Oct 2024 17:58:37 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.1.0.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete

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/MKGitHub/MKBlockQueue.git
Reference: 1.0.4
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/MKGitHub/MKBlockQueue
 * tag               1.0.4      -> FETCH_HEAD
HEAD is now at c28b897 Update to version 1.0.4
Cloned https://github.com/MKGitHub/MKBlockQueue.git
Revision (git rev-parse @):
c28b89771bf1a1a727e02de7d9913346f95b78ec
SUCCESS checkout https://github.com/MKGitHub/MKBlockQueue.git at 1.0.4
error: 'spi-builder-workspace': package 'package.swift' is using Swift tools version 3.1.0 which is no longer supported; consider using '// swift-tools-version: 6.0' to specify the current tools version
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Build
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Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $PWD
https://github.com/MKGitHub/MKBlockQueue.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.1.0.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete
error: 'spi-builder-workspace': package 'package.swift' is using Swift tools version 3.1.0 which is no longer supported; consider using '// swift-tools-version: 6.0' to specify the current tools version
error: 'spi-builder-workspace': package 'package.swift' is using Swift tools version 3.1.0 which is no longer supported; consider using '// swift-tools-version: 6.0' to specify the current tools version
BUILD FAILURE 6.0 macosSpm