FreeBSD-main-amd64-test - Build #26951 - Still unstable

FreeBSD-main-amd64-test - Build #26951 (586319793368cbc664b48187bda60d27e171753a) - Still unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/26951/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/26951/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/26951/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)

586319793368cbc664b48187bda60d27e171753a by delphij:
libbz2: add pkg-config file (bzip2.pc)



The failed test cases:

2 tests failed.
FAILED:  lib.libregex.exhaust_test.regcomp_too_big

Error Message:
Empty test result or no new line

FAILED:  libexec.rc.rc_subr_test.no_cycles

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