FreeBSD-main-amd64-test - Build #25371 - Still Unstable

FreeBSD-main-amd64-test - Build #25371 (b9f0dbc3d006e0b904ee4275d54459f4edd65bb8) - Still Unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/25371/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/25371/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/25371/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)

f933363a81d6d40f77237f009ea97385736f1148 by markj:
ObsoleteFiles.inc: Include the default compression suffix for man pages

ba373fca78a114768244d6a8c27983da870c1169 by emaste:
Do not clean (in buildworld/buildkernel) by default

375aaa299f85a66cee808490c31809db9e890a68 by kp:
pfctl: improve error reporting

534ee17e61ee094ec175703bc50e88ff6587703e by kp:
pf: stricter state checking for ICMP and ICMPv6 packets

e296b0de9e467b8c5eb853f6cf4c6ea28d4119a2 by kp:
pf: some ICMP types that also have icmp_id, pointed out by markus@

46755f52247bd34a7f013d6844ed0c673ac0defc by kp:
pf: split ICMP/ICMPv6 number space in pf_icmp_mapping()

1afe4da75d1d2acd33b25eea942af28aa41c82c2 by kp:
pf: allow MLD LR to be sent without state

b9f0dbc3d006e0b904ee4275d54459f4edd65bb8 by kp:
pf tests: ensure we don't confuse different ICMP types



The failed test cases:

2 tests failed.
FAILED:  sys.netinet6.test_ip6_output.py.TestIP6Output::test_output6_nhop

Error Message:
/usr/tests/sys/netinet6/test_ip6_output.py:142: AssertionError

FAILED:  sys.netinet6.test_ip6_output.py.TestIP6OutputNhopLL::test_output6_nhop_linklocal

Error Message:
/usr/tests/sys/netinet6/test_ip6_output.py:296: AssertionError