FreeBSD-stable-15-amd64-test - Build #1219 - Still Unstable

FreeBSD-stable-15-amd64-test - Build #1219 (30b70876207dd874228693c9700d77c6630cb69a) - Still Unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-stable-15-amd64-test/1219/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-stable-15-amd64-test/1219/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-stable-15-amd64-test/1219/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)

77f8982b5ecd8275a7ad577feae93ba9d5bc466f by kevans:
snd_uaudio: recognize hardware sidetone as a monitor

5245187af22b934ad10b82151f7f5a970140f283 by kevans:
rc: add a backlight service to save/restore backlight levels

84ec2d3b67dffadd2c0c839a1fab621e63ce0b68 by kevans:
iuserboot: bump the interface to v6, add an accept_interpreter callback

ea041ed323eee97c303283a8e7f477ca2868f1a8 by kevans:
loader.efi: devinit() just after parsing args instead

30b70876207dd874228693c9700d77c6630cb69a by kevans:
wg: fix the LINT-NOIP build



The failed test cases:

2 tests failed.
FAILED:  sys.netpfil.pf.igmp.py.TestIGMP::test_ip_opts

Error Message:
/usr/local/lib/python3.12/site-packages/scapy/packet.py:1985: AttributeError

FAILED:  lib.libexecinfo.sigtramp_test.test_backtrace_sigtramp

Error Message:
/usr/src/lib/libexecinfo/tests/sigtramp_test.c:30: n > 1 not met