Sad state of MRI under mutation testing :(, ignore the systemd part from blaming ;)

coredumps.txt

Nov 15 21:26:18 mbj systemd-coredump[13250]: Process 13247 (ruby) of user 1000 dumped core.
Nov 15 21:26:47 mbj systemd-coredump[14510]: Process 14507 (ruby) of user 1000 dumped core.
Nov 15 21:30:23 mbj systemd-coredump[15870]: Process 15867 (ruby) of user 1000 dumped core.
Nov 15 21:34:17 mbj systemd-coredump[19688]: Process 19685 (ruby) of user 1000 dumped core.
Nov 15 21:35:57 mbj systemd-coredump[30246]: Process 30243 (ruby) of user 1000 dumped core.
Nov 15 21:36:51 mbj systemd-coredump[510]: Process 507 (ruby) of user 1000 dumped core.
Nov 15 21:37:39 mbj systemd-coredump[11273]: Process 11270 (ruby) of user 1000 dumped core.
Nov 15 21:38:00 mbj systemd-coredump[11630]: Process 11627 (ruby) of user 1000 dumped core.
Nov 15 21:39:14 mbj systemd-coredump[23801]: Process 23798 (ruby) of user 1000 dumped core.
Nov 15 21:50:51 mbj systemd-coredump[29197]: Process 29194 (ruby) of user 1000 dumped core.
Nov 15 21:51:21 mbj systemd-coredump[30418]: Process 30415 (ruby) of user 1000 dumped core.
Nov 15 21:52:23 mbj systemd-coredump[32685]: Process 32682 (ruby) of user 1000 dumped core.
Nov 15 21:52:43 mbj systemd-coredump[1773]: Process 1770 (ruby) of user 1000 dumped core.
Nov 15 21:52:54 mbj systemd-coredump[2395]: Process 2392 (ruby) of user 1000 dumped core.
Nov 15 21:53:33 mbj systemd-coredump[3808]: Process 3805 (ruby) of user 1000 dumped core.
Nov 15 21:54:09 mbj systemd-coredump[5179]: Process 5176 (ruby) of user 1000 dumped core.
Nov 15 21:54:34 mbj systemd-coredump[6873]: Process 6870 (ruby) of user 1000 dumped core.

This is running the mutant test suite, and monitoring the system journal. The actual number of coredumps is higher, this is a small extraction.