https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97936
--- Comment #7 from Jonathan Wakely <redi at gcc dot gnu.org> --- This one was failing too: WARNING: 30_threads/semaphore/try_acquire_for.cc execution test program timed out. FAIL: 30_threads/semaphore/try_acquire_for.cc execution test I think that should be fixed by r11-5330.