FreeBSD-main-amd64-test - Build #27508 - Still Unstable

FreeBSD-main-amd64-test - Build #27508 (ae31c10537edc1ed77a852e60bf3bd31fc38cba2) - Still Unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/27508/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/27508/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/27508/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)

63d1c3c43690ff3c3e76e1fb03c8640fe30a2663 by dim:
bsd.sys.mk: suppress some new clang 21 warnings for C++

ae31c10537edc1ed77a852e60bf3bd31fc38cba2 by dim:
bsd.sys.mk: add NO_WCHARACTER_CONVERSION and use it for googletest



The failed test cases:

2 tests failed.
FAILED:  sys.netpfil.pf.nat.endpoint_independent_compat

Error Message:
server1 did not receive connection from client (default)

FAILED:  usr.bin.tar.functional_test.test_option_s

Error Message:
atf-check failed; see the output of the test for details