Here are a few recent instances of the issue:
From https://github.com/intel/llvm/actions/runs/19648366951/job/56277321685 for #20675
Test d:\github_work\llvm\llvm\install\bin\filecheck.exe hung!
Test d:\github_work\llvm\llvm\build-e2e\enqueuefunctions\output\mem_advise.cpp.tmp.out hung!
Error: Process completed with exit code 1.
From https://github.com/intel/llvm/actions/runs/19651035960/job/56281374239 for #20602
Test d:\github_work\llvm\llvm\build-e2e\usm\output\mixed2.cpp.tmp1.out hung!
Error: Process completed with exit code 1.