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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 MLStarRating, reference v1.0.4 (e01488), with Swift 6.0 for macOS (SPM) on 31 Oct 2024 13:22:04 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/micheltlutz/MLStarRating.git
Reference: v1.0.4
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/micheltlutz/MLStarRating
 * tag               v1.0.4     -> FETCH_HEAD
HEAD is now at e014882 Swift 5
Cloned https://github.com/micheltlutz/MLStarRating.git
Revision (git rev-parse @):
e014882b1be78ba116b864e62ba4fe62297d52c6
SUCCESS checkout https://github.com/micheltlutz/MLStarRating.git at v1.0.4
========================================
ResolveProductDependencies
========================================
Resolving dependencies ...
Fetching https://github.com/micheltlutz/MLStarRating.git
[3/251] Fetching mlstarrating
Fetched https://github.com/micheltlutz/MLStarRating.git from cache (0.94s)
Creating working copy for https://github.com/micheltlutz/MLStarRating.git
Working copy of https://github.com/micheltlutz/MLStarRating.git resolved at v1.0.4 (e014882)
error: 'mlstarrating': product 'UIKit' required by package 'mlstarrating' target 'MLStarRating' not found.
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $PWD
https://github.com/micheltlutz/MLStarRating.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': product 'UIKit' required by package 'spi-builder-workspace' target 'MLStarRating' not found.
BUILD FAILURE 6.0 macosSpm