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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 Dated, reference main (c2ecac), with Swift 5.10 for macOS (SPM) on 5 Feb 2025 21:44:16 UTC.

Build Command

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

Build Log

========================================
RunAll
========================================
Builder version: 4.60.1
Interrupt handler set up.
========================================
Checkout
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Clone URL: https://github.com/Semantical/Dated.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/Semantical/Dated
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at c2ecacb CalendarSubdivision: Fix `distance(to:)` returning incorrect values
Cloned https://github.com/Semantical/Dated.git
Revision (git rev-parse @):
c2ecacbf188313565b04d93f28c7be01ed827ed5
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/Semantical/Dated.git at main
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             5.10
Building package at path:  $PWD
https://github.com/Semantical/Dated.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