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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 SwiftyXPC, reference main (00853d), with Swift 5.9 for macOS (SPM) on 3 Sep 2024 03:55:30 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-15.2.0.app xcrun swift build --arch arm64

Build Log

========================================
RunAll
========================================
Builder version: 4.52.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/CharlesJS/SwiftyXPC.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/CharlesJS/SwiftyXPC
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 00853dd Clean up concurrency for Swift 6
Cloned https://github.com/CharlesJS/SwiftyXPC.git
Revision (git rev-parse @):
00853ddb5e041975d344f14b23e589b4aaed1f4e
SUCCESS checkout https://github.com/CharlesJS/SwiftyXPC.git at main
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             5.9
Building package at path:  $PWD
https://github.com/CharlesJS/SwiftyXPC.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-15.2.0.app xcrun swift build --arch arm64
Building for debugging...
[1/12] Compiling SwiftyXPC XPCNull.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftyXPC/XPCErrorRegistry.swift:8:8: error: no such module 'Synchronization'
import Synchronization
       ^
[2/13] Compiling SwiftyXPC XPCType.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftyXPC/XPCErrorRegistry.swift:8:8: error: no such module 'Synchronization'
import Synchronization
       ^
[3/13] Compiling SwiftyXPC XPCEndpoint.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftyXPC/XPCErrorRegistry.swift:8:8: error: no such module 'Synchronization'
import Synchronization
       ^
[4/13] Compiling SwiftyXPC XPCEncoder.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftyXPC/XPCErrorRegistry.swift:8:8: error: no such module 'Synchronization'
import Synchronization
       ^
[5/13] Compiling SwiftyXPC XPCDecoder.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftyXPC/XPCErrorRegistry.swift:8:8: error: no such module 'Synchronization'
import Synchronization
       ^
[6/13] Compiling SwiftyXPC XPCError.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftyXPC/XPCErrorRegistry.swift:8:8: error: no such module 'Synchronization'
import Synchronization
       ^
[7/13] Compiling SwiftyXPC XPCErrorRegistry.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftyXPC/XPCErrorRegistry.swift:8:8: error: no such module 'Synchronization'
import Synchronization
       ^
[8/13] Compiling SwiftyXPC XPCListener.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftyXPC/XPCErrorRegistry.swift:8:8: error: no such module 'Synchronization'
import Synchronization
       ^
[9/13] Compiling SwiftyXPC XPCFileDescriptor.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftyXPC/XPCErrorRegistry.swift:8:8: error: no such module 'Synchronization'
import Synchronization
       ^
error: emit-module command failed with exit code 1 (use -v to see invocation)
[10/13] Emitting module SwiftyXPC
/Users/admin/builder/spi-builder-workspace/Sources/SwiftyXPC/XPCErrorRegistry.swift:8:8: error: no such module 'Synchronization'
import Synchronization
       ^
[11/13] Compiling SwiftyXPC String+SwiftyXPC.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftyXPC/XPCErrorRegistry.swift:8:8: error: no such module 'Synchronization'
import Synchronization
       ^
[12/13] Compiling SwiftyXPC XPCConnection.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftyXPC/XPCErrorRegistry.swift:8:8: error: no such module 'Synchronization'
import Synchronization
       ^
error: fatalError
BUILD FAILURE 5.9 macosSpm