pg_dump/restore failure (dependency?) on BF serinus

Hi,

https://buildfarm.postgresql.org/cgi-bin/show_stage_log.pl?nm=serinus&dt=2025-04-07%2017%3A45%3A28&stg=pg_upgrade-check
failed in a problem-indicating way in the new dump/restore test that Ashutosh
added.

> # Running: pg_restore --create -j2 -d postgres /home/bf/bf-build/serinus/HEAD/pgsql.build/testrun/pg_upgrade/002_pg_upgrade/data/tmp_test_KTss/regression.dump
> pg_restore: error: could not execute query: ERROR: there is no unique constraint matching given keys for referenced table "pk"
> Command was: ALTER TABLE fkpart5.fk
> ADD CONSTRAINT fk_a_fkey FOREIGN KEY (a) REFERENCES fkpart5.pk(a);
>
>
> pg_restore: warning: errors ignored on restore: 2

There are no other errors visible, neither in regress_log, nor in the server
log.

It's hard to tell without more logging, but the most likely explanation for
this seems that somehow the primary key on fkpart5.pk hasn't yet been
restored. However, looking at the pg_restore -v -l of the regression test
database locally, the relevant dependencies look sane on a first glance.

So I'm a bit confused how this could happen?

Greetings,

Andres Freund