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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 xcdiff, reference 0.13.0 (99301e), with Swift 5.9 for macOS (SPM) on 14 Feb 2025 20:54:44 UTC.

Build Command

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

Build Log

========================================
RunAll
========================================
Builder version: 4.60.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/bloomberg/xcdiff.git
Reference: 0.13.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/bloomberg/xcdiff
 * tag               0.13.0     -> FETCH_HEAD
HEAD is now at 99301ee Bump to 0.13.0 (#144)
Cloned https://github.com/bloomberg/xcdiff.git
Revision (git rev-parse @):
99301ee4578224f0660a1312abc465c5a37176c5
SUCCESS checkout https://github.com/bloomberg/xcdiff.git at 0.13.0
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             5.9
Building package at path:  $PWD
https://github.com/bloomberg/xcdiff.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-15.2.0.app xcrun swift build --arch arm64
Fetching https://github.com/apple/swift-argument-parser
Fetching https://github.com/tuist/xcodeproj.git
Fetching https://github.com/kylef/PathKit
[1/1411] Fetching pathkit
[1412/23770] Fetching pathkit, xcodeproj
[1413/37534] Fetching pathkit, xcodeproj, swift-argument-parser
Fetched https://github.com/tuist/xcodeproj.git (3.19s)
Fetching https://github.com/apple/swift-tools-support-core.git
Fetched https://github.com/apple/swift-argument-parser (3.19s)
Fetched https://github.com/kylef/PathKit (3.19s)
[1/6628] Fetching swift-tools-support-core
Fetched https://github.com/apple/swift-tools-support-core.git (1.31s)
Computing version for https://github.com/apple/swift-argument-parser
Computed https://github.com/apple/swift-argument-parser at 1.5.0 (0.52s)
Computing version for https://github.com/tuist/xcodeproj.git
error: Dependencies could not be resolved because 'xcodeproj' >= 8.24.12 contains incompatible tools version (5.10.0) and root depends on 'xcodeproj' 8.26.6..<9.0.0.
BUILD FAILURE 5.9 macosSpm