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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 XCTestExtension, reference master (33dd87), with Swift 5.10 for macOS (SPM) on 19 Mar 2025 00:01:44 UTC.

Build Command

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

Build Log

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RunAll
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Builder version: 4.60.1
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/Filozoff/XCTestExtension.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/Filozoff/XCTestExtension
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 33dd874 Update for Swift 6
Cloned https://github.com/Filozoff/XCTestExtension.git
Revision (git rev-parse @):
33dd874a1bb765c08aeb38eada7937d198a06431
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/Filozoff/XCTestExtension.git at master
========================================
Build
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Selected platform:         macosSpm
Swift version:             5.10
Building package at path:  $PWD
https://github.com/Filozoff/XCTestExtension.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-15.4.0.app xcrun swift build --arch arm64
error: 'spi-builder-workspace': package 'spi-builder-workspace' is using Swift tools version 6.0.0 but the installed version is 5.10.0
BUILD FAILURE 5.10 macosSpm