SupportTests ProgramEnvTest.CreateProcessLongPath test is flaky on Windows #135593
Description
This test flaked for me in this build:
https://lab.llvm.org/buildbot/#/builders/146/builds/2701 (red)
It also flaked on this build:
https://lab.llvm.org/buildbot/#/builders/146/builds/2695 (red)
And passed on these two:
https://lab.llvm.org/buildbot/#/builders/146/builds/2702
https://lab.llvm.org/buildbot/#/builders/146/builds/2696
Logs will be gone soon, so here's what failure looks like:
******************** TEST 'LLVM-Unit :: Support/./SupportTests.exe/82/95' FAILED ******************** Script(shard): -- GTEST_OUTPUT=json:C:\a\lld-x86_64-win\build\unittests\Support\.\SupportTests.exe-LLVM-Unit-12424-82-95.json GTEST_SHUFFLE=0 GTEST_TOTAL_SHARDS=95 GTEST_SHARD_INDEX=82 C:\a\lld-x86_64-win\build\unittests\Support\.\SupportTests.exe -- Script: -- C:\a\lld-x86_64-win\build\unittests\Support\.\SupportTests.exe --gtest_filter=ProgramEnvTest.CreateProcessLongPath -- C:\a\lld-x86_64-win\llvm-project\llvm\unittests\Support\ProgramTest.cpp(160): error: Expected equality of these values: 0 RC Which is: -2 C:\a\lld-x86_64-win\llvm-project\llvm\unittests\Support\ProgramTest.cpp(163): error: fs::remove(Twine(LongPath)): did not return errc::success. error number: 13 error message: permission denied C:\a\lld-x86_64-win\llvm-project\llvm\unittests\Support\ProgramTest.cpp:160 Expected equality of these values: 0 RC Which is: -2 C:\a\lld-x86_64-win\llvm-project\llvm\unittests\Support\ProgramTest.cpp:163 fs::remove(Twine(LongPath)): did not return errc::success. error number: 13 error message: permission denied ******************** I'm not sure what an exit code of -2 means.