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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 swift-signal with Swift 5.8 for macOS (SPM).

Build Command

env DEVELOPER_DIR=/Applications/Xcode-14.3.1.app xcrun swift build --arch arm64

Build Log

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RunAll
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Builder version: 4.32.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/unixzii/swift-signal.git
Reference: 1.0.0-alpha.1
Initialized empty Git repository in /Users/admin/builds/vMd7uqzK/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/.git/
From https://github.com/unixzii/swift-signal
 * tag               1.0.0-alpha.1 -> FETCH_HEAD
HEAD is now at 0b7d2f2 Fix typo
Cloned https://github.com/unixzii/swift-signal.git
Revision (git rev-parse @):
0b7d2f2378e1194741c633ff0c7a4948ca56f2ff
SUCCESS checkout https://github.com/unixzii/swift-signal.git at 1.0.0-alpha.1
========================================
Build
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Selected platform:         macosSpm
Swift version:             5.8
Building package at path:  $workDir
https://github.com/unixzii/swift-signal.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-14.3.1.app xcrun swift build --arch arm64
error: 'spi-builder-workspace': package 'spi-builder-workspace' is using Swift tools version 5.9.0 but the installed version is 5.8.1
error: 'spi-builder-workspace': package 'spi-builder-workspace' is using Swift tools version 5.9.0 but the installed version is 5.8.1
BUILD FAILURE 5.8 macosSpm