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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, reference master (e2649a), with Swift 6.0 for macOS (SPM) on 31 Oct 2024 07:13:41 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

========================================
RunAll
========================================
Builder version: 4.56.0
Interrupt handler set up.
========================================
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
Fetching https://github.com/crossroadlabs/Regex.git
[13/1296] Fetching regex
Fetched https://github.com/crossroadlabs/Regex.git from cache (0.96s)
Fetching https://github.com/skylab-inc/PathToRegex.git
[1/362] Fetching pathtoregex
Fetched https://github.com/skylab-inc/PathToRegex.git from cache (0.79s)
error: 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 in https://github.com/skylab-inc/PathToRegex.git
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $PWD
https://github.com/skylab-inc/lightning.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
Updating https://github.com/crossroadlabs/Regex.git
Updated https://github.com/crossroadlabs/Regex.git (0.44s)
Updating https://github.com/skylab-inc/PathToRegex.git
Updated https://github.com/skylab-inc/PathToRegex.git (0.45s)
error: 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 in https://github.com/skylab-inc/PathToRegex.git
BUILD FAILURE 6.0 macosSpm