This case fails since it is added in r351421. https://ci.freebsd.org/job/FreeBSD-head-i386-test/6451/testReport/sys.netpfil.common/forward/pf_v4/
This is almost certainly the result of the same i386 bpf issue as #239380.
A commit references this bug: Author: lwhsu Date: Tue Sep 17 22:08:16 UTC 2019 New revision: 352462 URL: https://svnweb.freebsd.org/changeset/base/352462 Log: Temporarily skip sys.netpfil.common.forward.pf_v4 on i386 CI as it always fails PR: 240085 Sponsored by: The FreeBSD Foundation Changes: head/tests/sys/netpfil/common/forward.sh
*** This bug has been marked as a duplicate of bug 239380 ***