It seems that the tests are exhausting memory on i386 now. From https://ci.freebsd.org/job/FreeBSD-head-i386-test/5132/testReport/junit/lib.libc.regex/exhaust_test/regcomp_too_big/: /usr/src/contrib/netbsd-tests/lib/libc/regex/t_exhaust.c:72: p != NULL not met
lib.libc.regex.exhaust_test.regcomp_too_big also usually fails on stable/12, and while lib.libregex.exhaust_test.regcomp_too_big is fine on head, it usually fails on stable/12, too.
A commit references this bug: Author: lwhsu Date: Mon Jul 22 18:42:55 UTC 2019 New revision: 350219 URL: https://svnweb.freebsd.org/changeset/base/350219 Log: Temporarily skip lib.libc.regex.exhaust_test.regcomp_too_big and lib.libregex.exhaust_test.regcomp_too_big on i386 as they are flakey on it PR: 237450 Sponsored by: The FreeBSD Foundation Changes: head/contrib/netbsd-tests/lib/libc/regex/t_exhaust.c
A commit references this bug: Author: lwhsu Date: Tue Jul 23 08:18:09 UTC 2019 New revision: 350236 URL: https://svnweb.freebsd.org/changeset/base/350236 Log: MFC r350219 Temporarily skip lib.libc.regex.exhaust_test.regcomp_too_big and lib.libregex.exhaust_test.regcomp_too_big on i386 as they are flakey on it PR: 237450 Sponsored by: The FreeBSD Foundation Changes: _U stable/12/ stable/12/contrib/netbsd-tests/lib/libc/regex/t_exhaust.c
A commit references this bug: Author: lwhsu Date: Wed Sep 11 18:40:06 UTC 2019 New revision: 352227 URL: https://svnweb.freebsd.org/changeset/base/352227 Log: Only skip problematic test in CI env. PR: 237450 Sponsored by: The FreeBSD Foundation Changes: head/contrib/netbsd-tests/lib/libc/regex/t_exhaust.c