diff -U3 /home/bf/build/buildfarm-idiacanthus/HEAD/pgsql.build/../pgsql/src/test/regress/expected/misc_functions.out /home/bf/build/buildfarm-idiacanthus/HEAD/pgsql.build/src/bin/pg_upgrade/tmp_check/regress/results/misc_functions.out
--- /home/bf/build/buildfarm-idiacanthus/HEAD/pgsql.build/../pgsql/src/test/regress/expected/misc_functions.out	2020-03-17 08:14:50.292037956 +0100
+++ /home/bf/build/buildfarm-idiacanthus/HEAD/pgsql.build/src/bin/pg_upgrade/tmp_check/regress/results/misc_functions.out	2020-03-28 13:55:12.490024822 +0100
@@ -169,11 +169,7 @@
 
 select (w).size = :segsize as ok
 from (select pg_ls_waldir() w) ss where length((w).name) = 24 limit 1;
- ok 
-----
- t
-(1 row)
-
+ERROR:  could not stat file "pg_wal/000000010000000000000078": No such file or directory
 select count(*) >= 0 as ok from pg_ls_archive_statusdir();
  ok 
 ----