Please stop dropping me from the cc. :( Ted Zlatanov wrote: >>> branch: master >>> commit 583995c62dd424775dda33d5134ce04bee2ae685 > > GM> Hi, this change apparently causes gnutls tests to segfault on hydra. > GM> I can't give you any more information than is accessible from > > GM> http://hydra.nixos.org/build/56430842 > > Thanks, Glenn. The logs have nothing useful unfortunately[1]. The logs say that gnutls 3.2.21 was used. I installed that version on rhel 7, and trivially reproduced the crash when loading the gnutls tests. Backtrace attached. Maybe if you install that version, it will crash for you too...