libfuzzer tests on Linux


A couple of LibFuzzer tests are consistently failing for me on Linux with top-of-trunk LLVM/Clang/compiler-rt.
These same tests work under mac os.
I'm exactly reproducing the commands from the CI to do a two-stage build (

Moreover, looking at CI further it seems that it is running on a macbook: so could it be that tests are actually failing?



I was obviously looking at the wrong CI, the proper URL is

However, for me tests are still failing, *unless* I explicitly build "llvm-symbolizer” before running “ninja check-fuzzer”.
I strongly suspect that the CI machine just has llvm-symbolizer already installed in $PATH, and that’s why the tests succeed.