FreeBSD-main-amd64-test - Build #28010 - Still unstable

FreeBSD-main-amd64-test - Build #28010 (df5b2cf2b31bf66e3b21c772b39f6cc6406dcb7b) - Still unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/28010/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/28010/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/28010/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)

df5b2cf2b31bf66e3b21c772b39f6cc6406dcb7b by des:
Complete removal of GNU diff



The failed test cases:

2 tests failed.
FAILED:  sys.netinet6.proxy_ndp.pndp_neighbor_advert

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

FAILED:  sys.netpfil.pf.nat.endpoint_independent_compat

Error Message:
server1 did not receive connection from client (endpoint-independent)