what's going on with lapwing?

lapwing has been failing sepgsql-check for over a month, but there's
no log file:

https://buildfarm.postgresql.org/cgi-bin/show_stage_log.pl?nm=lapwing&dt=2025-03-03%2016%3A29%3A50&stg=contrib-sepgsql-check

I feel like something must be broken with logfile collection in the
buildfarm client, because I keep seeing failures like this where
there's no log to view. It's hard to know whether this is a
configuration issue with this BF member or whether something actually
needs fixing. In any case, we should try to figure out what's going on
here.

Apologies if this has been discussed elsewhere and I have missed it.
Pointers appreciated.

-- 
Robert Haas
EDB: http://www.enterprisedb.com