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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 grpc-swift, reference main (0d850d), with Swift 5.9 for macOS (SPM) on 2 May 2025 10:38:35 UTC.

Build Command

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

Build Log

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RunAll
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Builder version: 4.61.3
Interrupt handler set up.
========================================
Checkout
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Clone URL: https://github.com/grpc/grpc-swift.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/grpc/grpc-swift
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 0d850d6 Add a new field, transportSpecific to ServerContext (#2228)
Cloned https://github.com/grpc/grpc-swift.git
Revision (git rev-parse @):
0d850d6d666fac316cc2512dff755cc9b211c312
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/grpc/grpc-swift.git at main
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             5.9
Building package at path:  $PWD
https://github.com/grpc/grpc-swift.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 6.0.0 but the installed version is 5.9.0
BUILD FAILURE 5.9 macosSpm