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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 BlackBoxFirebaseCrashlytics, reference main (e91c2d), with Swift 5.10 for macOS (SPM) on 29 Apr 2025 00:25:31 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: 4.61.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/dodobrands/BlackBoxFirebaseCrashlytics.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/dodobrands/BlackBoxFirebaseCrashlytics
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at e91c2d0 Bump github.com/firebase/firebase-ios-sdk from 11.11.0 to 11.12.0 (#36)
Cloned https://github.com/dodobrands/BlackBoxFirebaseCrashlytics.git
Revision (git rev-parse @):
e91c2d0e82120fe0680e6c608b96265e129827b4
SUCCESS checkout https://github.com/dodobrands/BlackBoxFirebaseCrashlytics.git at main
========================================
Build
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Selected platform:         macosSpm
Swift version:             5.10
Building package at path:  $PWD
https://github.com/dodobrands/BlackBoxFirebaseCrashlytics.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