FreeBSD-main-amd64-test - Build #23080 - Still Unstable

FreeBSD-main-amd64-test - Build #23080 (129ec8f4805ec3f33480873dc9cf3b8404c9ece8) - Still Unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/23080/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/23080/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/23080/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)

c5e54e56e68aa50beb7d2a7b8ae6611490a7ba9e by emaste:
tools/build: Hide spurious errors if sys/stat.h does not exist

ceb5f28ba5fcfa69de7410d2327d4a5abf2a421f by emaste:
freebsd-update: re-edit files if merge conflict markers remain

6b4ef4b16a6930d91d0d99c4ceb75cd43a7526c1 by kevans:
daemon: use braces with 'if' consistently

e745dc2287ac4844c1a21aaa31d0bc3dad6b1b06 by kevans:
daemon: consolidate variable declarations and initializaions

84866cefdfb78488543056173aea78748b77159b by kevans:
daemon: initialize mask_orig with sigemptyset()

91b921c7d4684599d1d983f77dcc3df90900adc0 by kevans:
daemon: fix double init of pid variable

259ed21d21f81b656f06447716d41c190576477e by kevans:
daemon: initialize struct sigaction at declaration site

203df05b692b5e2b92c990d8971f5797e3a7a139 by kevans:
daemon: add supervision_enabled var

f2f9d31d9f9f7f319edb95874b41af0733a26624 by kevans:
daemon: make dosyslog variable a bool and give it a better name

97022e90c3693ad1180bd26ebc909ce27893b227 by kevans:
daemon: make log_reopen variable a bool

e70444c622a97e02fb5a76c06f9a48b4a07aa963 by kevans:
daemon: deduplicate log_params varaibles

6f0636728b53c74d3327a8da8c51efee810fbff0 by kevans:
daemon: move syslog facility and syslog tag into log_params

129ec8f4805ec3f33480873dc9cf3b8404c9ece8 by kevans:
daemon: more human-friendly variable names



The failed test cases:

1 tests failed.
FAILED:  usr.bin.yacc.yacc_tests.main

Error Message:
Returned non-success exit status 1