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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 Flash, reference main (a46ecc), with Swift 5.10 for macOS (SPM) on 21 Oct 2024 01:46:57 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-15.4.0.app xcrun swift build --arch arm64

Build Log

========================================
RunAll
========================================
Builder version: 4.55.3
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/conmulligan/Flash.swift.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/conmulligan/Flash.swift
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at a46ecc5 Update workflow
Cloned https://github.com/conmulligan/Flash.swift.git
Revision (git rev-parse @):
a46ecc5a843898e0b6a8e6083cc79ebaef185db4
SUCCESS checkout https://github.com/conmulligan/Flash.swift.git at main
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             5.10
Building package at path:  $PWD
https://github.com/conmulligan/Flash.swift.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-15.4.0.app xcrun swift build --arch arm64
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-33747A42983211AE.txt
error: emit-module command failed with exit code 1 (use -v to see invocation)
[3/6] Emitting module Flash
/Users/admin/builder/spi-builder-workspace/Sources/Flash/BackgroundView.swift:25:8: error: no such module 'UIKit'
import UIKit
       ^
[4/6] Compiling Flash FlashAnimator.swift
/Users/admin/builder/spi-builder-workspace/Sources/Flash/BackgroundView.swift:25:8: error: no such module 'UIKit'
import UIKit
       ^
[5/6] Compiling Flash FlashView.swift
/Users/admin/builder/spi-builder-workspace/Sources/Flash/BackgroundView.swift:25:8: error: no such module 'UIKit'
import UIKit
       ^
[6/6] Compiling Flash BackgroundView.swift
/Users/admin/builder/spi-builder-workspace/Sources/Flash/BackgroundView.swift:25:8: error: no such module 'UIKit'
import UIKit
       ^
error: fatalError
BUILD FAILURE 5.10 macosSpm