Jun  4 11:31:10 ci2-netbsd-test-2 postfix/master[518]: fatal: cannot update lock file /var/db/postfix/master.lock: No space left on device

Jun  4 11:31:11 ci2-netbsd-test-2 postfix/master[458]: fatal: daemon initialization failure

Jun  4 11:31:12 ci2-netbsd-test-2 postfix/postfix-script[403]: fatal: mail system startup failed

/etc/rc.d/postfix exited with code 1
Starting inetd.
Starting cron.
The following components reported failures:
    /etc/rc.d/postfix
See /var/run/rc.log for more information.
Tue Jun  4 11:31:14 UTC 2019
Warning: Permanently added '10.128.0.20' (ECDSA) to the list of known hosts.
2019/06/04 11:31:15 fuzzer started
2019/06/04 11:31:15 connecting to host at 10.128.0.105:38581
2019/06/04 11:31:15 checking machine...
2019/06/04 11:31:15 checking revisions...
2019/06/04 11:31:15 testing simple program...
2019/06/04 11:31:16 BUG: program execution failed: executor 0: EOF
open of /dev/kcov failed (errno 2)