buildfarm animal shoveler failing with "Illegal instruction"

Hi Mark,

shoveler has been failing for a while with an odd error. E.g.
https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=shoveler&dt=2020-09-18%2014%3A01%3A48

Illegal instruction
pg_dumpall: error: pg_dump failed on database "template1", exiting
waiting for server to shut down.... done

None of the changes in that time frame look like they're likely causing
illegal instructions to be emitted that weren't before. So I am
wondering if anything changed on that machine around  2020-09-18
14:01:48 ?

Greetings,

Andres Freund