[Source compatibility suite] exercism-swift failing to build on macOS with release/6.1

[justice-adams-apple]

Description

Description

exercism-swift is failing to build on internal/main, internal/6.0, and internal/6.1 with the following error

error: couldn't build swift-source-compat-suite/project_cache/exercism-swift/.build/x86_64-apple-macosx/debug/xswiftTests.build/LinuxMain.swift.o because of multiple producers: Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources), Compiling Swift Module 'xswiftTests' (174 sources)

This is a project issue and the source revision likely just needs to be updated in the source compatibility suite. I will reach out to the maintainer of the project

Reproduction

./runner.py --swift-branch release/6.1 --projects projects.json --include-actions 'action.startswith("Build")' --include-repos 'path == "exercism-swift"' --swiftc /Library/Developer/Toolchains/swift-6.1-DEVELOPMENT-SNAPSHOT-2025-01-22-a.xctoolchain/usr/bin/swiftc

Expected behavior

Expected the project to build correctly

Environment

https://ci.swift.org/view/Swift%206.1/job/swift-6.1-source-compat-suite-debug/3/artifact/swift-source-compat-suite/

Additional information

No response