FreeBSD-main-amd64-test - Build #26690 - Still Unstable

FreeBSD-main-amd64-test - Build #26690 (0b33b25b14033f738995c0a1fdcfd1f695afd6f2) - Still Unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/26690/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/26690/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/26690/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)

111607db6a45f9ddf1f025106ac74cb2d540e955 by cy:
OptionalObsoleteFiles: Keep Heimdal man pages when switching back

89f6eb0a61cbd93f537a2059142edfccc1b198c7 by tuexen:
tcp: restrict the contents of tcp_timer.h to the kernel context

a19b353d354d4ef808965c53253103cb6e7e6708 by zlei:
if_vlan: Fix up if_type before attaching the interface

af2949cd29ef453a63a6345de396be866138b051 by ziaee:
mandoc: Bump version string to 1.14.6s20250613

0b33b25b14033f738995c0a1fdcfd1f695afd6f2 by tuexen:
tcp: cleanup timer initialisations



The failed test cases:

6 tests failed.
FAILED:  lib.libcasper.services.cap_fileargs.fileargs_test.fileargs__fopen_write

Error Message:
/usr/src/lib/libcasper/services/cap_fileargs/tests/fileargs_test.c:528: test_file_fopen(fa, files[i], "w", &pfile) == 0 not met

FAILED:  sbin.swapon.swapon_test.attach_dev_md

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

FAILED:  sbin.swapon.swapon_test.attach_dev_md_eli

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

FAILED:  sbin.swapon.swapon_test.attach_md

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

FAILED:  sbin.swapon.swapon_test.attach_md_eli

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

FAILED:  sys.netinet.fibs_test.same_ip_multiple_ifaces_fib0

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