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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 2.1.2 (c4d628), with Swift 5.9 for macOS (SPM) on 18 Mar 2025 16:26:36 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: 4.60.1
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/grpc/grpc-swift.git
Reference: 2.1.2
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/grpc/grpc-swift
 * tag               2.1.2      -> FETCH_HEAD
HEAD is now at c4d6281 Convert errors thrown from interceptors (#2209)
Cloned https://github.com/grpc/grpc-swift.git
Revision (git rev-parse @):
c4d6281784f50bf2e60d3af45e83be1194056062
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/grpc/grpc-swift.git at 2.1.2
========================================
Build
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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