gradlew build fails with RoseauException

[mpkorstanje]

Steps to reproduce

Follow the readme and run ./gradlew build --info against main as , observe:

> Task :junit-jupiter-api:roseau FAILED
Build cache key for task ':junit-jupiter-api:roseau' is 8e7da30984e642fcf3bfac732378e95d
Task ':junit-jupiter-api:roseau' is not up-to-date because:
  Task has failed previously.
Starting process 'command '/home/mpkorstanje/.jdks/graalvm-ce-25.0.1/bin/java''. Working directory: /home/mpkorstanje/Projects/github/junit-team/junit5/junit-jupiter-api Command: /home/mpkorstanje/.jdks/graalvm-ce-25.0.1/bin/java -Dfile.encoding=UTF-8 -Duser.country=US -Duser.language=en -Duser.variant -cp [classptath ]io.github.alien.roseau.cli.RoseauCLI --classpath [classpath] --v1 /home/mpkorstanje/Projects/github/junit-team/junit5/junit-jupiter-api/build/previousRelease/junit-jupiter-api-6.0.1.jar --v2 /home/mpkorstanje/Projects/github/junit-team/junit5/junit-jupiter-api/build/libs/junit-jupiter-api-6.1.0-SNAPSHOT.jar --diff --fail-on-bc --config /home/mpkorstanje/Projects/github/junit-team/junit5/junit-jupiter-api/build/tmp/roseau/roseau.yaml
Successfully started process 'command '/home/mpkorstanje/.jdks/graalvm-ce-25.0.1/bin/java''
io.github.alien.roseau.RoseauException: A library cannot contain multiple module-info.java

[marcphilipp]

According to Develocity, the failure happened on the 4726_passsystempropext branch. I could not reproduce it, though.

I've enabled more verbose logging in dd09775.

@mpkorstanje Can you still reproduce it? If so, what's the output after cherry-picking the above commit?