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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 SystemFontOverride, reference main (1526a7), with Swift 6.0 (beta) for macOS (SPM) on 16 Sep 2024 13:33:07 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.0.0-Release.Candidate.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: 4.53.0
Interrupt handler set up.
========================================
Checkout
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Clone URL: https://github.com/yonat/SystemFontOverride.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/yonat/SystemFontOverride
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 1526a7f add image
Cloned https://github.com/yonat/SystemFontOverride.git
Revision (git rev-parse @):
1526a7f70043928b7819a17f406849768c17323f
SUCCESS checkout https://github.com/yonat/SystemFontOverride.git at main
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $PWD
https://github.com/yonat/SystemFontOverride.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.0.0-Release.Candidate.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete
Building for debugging...
[0/3] Write sources
[1/3] Copying PrivacyInfo.xcprivacy
[2/3] Write swift-version-117DEE11B69C53C9.txt
error: emit-module command failed with exit code 1 (use -v to see invocation)
[4/7] Emitting module SystemFontOverride
/Users/admin/builder/spi-builder-workspace/Sources/SystemFontOverride/UIFont+SystemFontOverride.swift:7:8: error: no such module 'UIKit'
  5 | //
  6 |
  7 | import UIKit
    |        `- error: no such module 'UIKit'
  8 |
  9 | public extension UIFont {
[5/7] Compiling SystemFontOverride resource_bundle_accessor.swift
/Users/admin/builder/spi-builder-workspace/Sources/SystemFontOverride/UIFont+SystemFontOverride.swift:7:8: error: no such module 'UIKit'
  5 | //
  6 |
  7 | import UIKit
    |        `- error: no such module 'UIKit'
  8 |
  9 | public extension UIFont {
[6/7] Compiling SystemFontOverride Font+SystemFontOverride.swift
/Users/admin/builder/spi-builder-workspace/Sources/SystemFontOverride/UIFont+SystemFontOverride.swift:7:8: error: no such module 'UIKit'
  5 | //
  6 |
  7 | import UIKit
    |        `- error: no such module 'UIKit'
  8 |
  9 | public extension UIFont {
[7/7] Compiling SystemFontOverride UIFont+SystemFontOverride.swift
/Users/admin/builder/spi-builder-workspace/Sources/SystemFontOverride/UIFont+SystemFontOverride.swift:7:8: error: no such module 'UIKit'
  5 | //
  6 |
  7 | import UIKit
    |        `- error: no such module 'UIKit'
  8 |
  9 | public extension UIFont {
BUILD FAILURE 6.0 macosSpm