FreeBSD-main-amd64-test - Build #26867 - Still Unstable

FreeBSD-main-amd64-test - Build #26867 (86221f965c06efa1cd5b2da640ae23edded7c8b9) - Still Unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/26867/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/26867/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/26867/console

Status explanation:
"Unstable" - some tests are suspected being broken by the following changes
"Still Unstable" - the failing test cases have not been fixed by these
                   following changes and this is a notification to note that
                   these changes have not been fully tested by the CI system

Change summaries:
(Those commits are likely but not certainly responsible)

86221f965c06efa1cd5b2da640ae23edded7c8b9 by cperciva:
vmimage.subr: Fix NO_ROOT build in ..._rmcache



The failed test cases:

11 tests failed.
FAILED:  lib.libc.regex.exhaust_test.regcomp_too_big

Error Message:
Empty test result or no new line

FAILED:  lib.libregex.exhaust_test.regcomp_too_big

Error Message:
Empty test result or no new line

FAILED:  sbin.ipfw.test_add_rule.py.TestAddRule::test_add_action[call_420]

Error Message:
/usr/tests/atf_python/sys/netpfil/ipfw/insns.py:105: ValueError

FAILED:  sbin.ipfw.test_add_rule.py.TestAddRule::test_add_action[return]

Error Message:
/usr/tests/atf_python/sys/netpfil/ipfw/insns.py:105: ValueError

FAILED:  sbin.ipfw.test_add_rule.py.TestAddRule::test_add_action[skipto_42]

Error Message:
/usr/tests/atf_python/sys/netpfil/ipfw/insns.py:105: ValueError

FAILED:  sbin.ipfw.test_add_rule.py.TestAddRule::test_add_rule[test_check_state]

Error Message:
/usr/tests/atf_python/sys/netpfil/ipfw/insns.py:105: ValueError

FAILED:  sbin.ipfw.test_add_rule.py.TestAddRule::test_add_rule[test_eaction_ntp]

Error Message:
/usr/tests/sbin/ipfw/test_add_rule.py:119: AssertionError

FAILED:  sbin.ipfw.test_add_rule.py.TestAddRule::test_add_rule[test_eaction_tcp-setmss]

Error Message:
/usr/tests/sbin/ipfw/test_add_rule.py:119: AssertionError

FAILED:  sbin.ipfw.test_add_rule.py.TestAddRule::test_add_rule[test_keep_state]

Error Message:
/usr/tests/atf_python/sys/netpfil/ipfw/insns.py:105: ValueError

FAILED:  sbin.ipfw.test_add_rule.py.TestAddRule::test_add_rule[test_record_state]

Error Message:
/usr/tests/atf_python/sys/netpfil/ipfw/insns.py:105: ValueError

FAILED:  sbin.ipfw.test_add_rule.py.TestAddRule::test_add_rule[test_tables]

Error Message:
/usr/tests/sbin/ipfw/test_add_rule.py:119: AssertionError