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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 LiveFader 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/cemolcay/livefader.git
Reference: master
Initialized empty Git repository in /Users/builder/builds/UKfvDsi8u/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/.git/
From https://github.com/cemolcay/livefader
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 25eab09 Update README.md
Cloned https://github.com/cemolcay/livefader.git
Revision (git rev-parse @):
25eab09eed323d6e39c5360e3a70f0cdd399f54d
SUCCESS checkout https://github.com/cemolcay/livefader.git at master
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             5.10
Building package at path:  $workDir
https://github.com/cemolcay/livefader.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-15.3.0-Beta.2.app xcrun swift build --arch arm64
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version--423B1241ED78D482.txt
error: emit-module command failed with exit code 1 (use -v to see invocation)
[3/5] Emitting module LiveFader
/Users/builder/builds/UKfvDsi8u/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/LiveFader/LiveFader.swift:9:8: error: no such module 'UIKit'
import UIKit
       ^
[4/5] Compiling LiveFader LiveFaderScrollView.swift
/Users/builder/builds/UKfvDsi8u/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/LiveFader/LiveFader.swift:9:8: error: no such module 'UIKit'
import UIKit
       ^
[5/5] Compiling LiveFader LiveFader.swift
/Users/builder/builds/UKfvDsi8u/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/LiveFader/LiveFader.swift:9:8: error: no such module 'UIKit'
import UIKit
       ^
error: fatalError
[0/1] Planning build
Building for debugging...
[0/1] Write swift-version--423B1241ED78D482.txt
error: emit-module command failed with exit code 1 (use -v to see invocation)
[2/4] Emitting module LiveFader
/Users/builder/builds/UKfvDsi8u/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/LiveFader/LiveFader.swift:9:8: error: no such module 'UIKit'
import UIKit
       ^
[3/4] Compiling LiveFader LiveFader.swift
/Users/builder/builds/UKfvDsi8u/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/LiveFader/LiveFader.swift:9:8: error: no such module 'UIKit'
import UIKit
       ^
[4/4] Compiling LiveFader LiveFaderScrollView.swift
/Users/builder/builds/UKfvDsi8u/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/LiveFader/LiveFader.swift:9:8: error: no such module 'UIKit'
import UIKit
       ^
error: fatalError
BUILD FAILURE 5.10 macosSpm