Failure in contrib test _int on loach

Hi,

This is a strange failure:

https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=loach&dt=2019-04-05%2005%3A15%3A00

test _int ... FAILED 649 ms

================= pgsql.build/contrib/intarray/regression.diffs
===================
diff -U3 /usr/home/pgbf/buildroot/HEAD/pgsql.build/contrib/intarray/expected/_int.out
/usr/home/pgbf/buildroot/HEAD/pgsql.build/contrib/intarray/results/_int.out
--- /usr/home/pgbf/buildroot/HEAD/pgsql.build/contrib/intarray/expected/_int.out
2019-03-21 12:16:30.514677000 +0100
+++ /usr/home/pgbf/buildroot/HEAD/pgsql.build/contrib/intarray/results/_int.out
2019-04-05 07:23:10.005914000 +0200
@@ -453,13 +453,13 @@
SELECT count(*) from test__int WHERE a && '{23,50}';
count
-------
- 403
+ 402
(1 row)

SELECT count(*) from test__int WHERE a @@ '23|50';
count
-------
- 403
+ 402
(1 row)

Those two queries are run immediately after:

CREATE INDEX text_idx on test__int using gist ( a gist__int_ops );

--
Thomas Munro
https://enterprisedb.com