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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 CalendarKit, reference main (93b81c), with Swift 5.9 for macOS (SPM) on 7 Sep 2024 19:03:44 UTC.

Build Command

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

Build Log

========================================
RunAll
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Builder version: 4.52.0
Interrupt handler set up.
========================================
Checkout
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Clone URL: https://github.com/insub4067/CalendarKit.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/insub4067/CalendarKit
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 93b81ca add `static let now` DateComponent
Cloned https://github.com/insub4067/CalendarKit.git
Revision (git rev-parse @):
93b81cadc7fc888f42338826749ed5ed2c61dbed
SUCCESS checkout https://github.com/insub4067/CalendarKit.git at main
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             5.9
Building package at path:  $PWD
https://github.com/insub4067/CalendarKit.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-15.2.0.app xcrun swift build --arch arm64
error: 'spi-builder-workspace': package 'spi-builder-workspace' is using Swift tools version 5.10.0 but the installed version is 5.9.0
BUILD FAILURE 5.9 macosSpm