diff -U3 /tmp/cirrus-ci-build/src/test/modules/test_shm_mq/expected/test_shm_mq.out /tmp/cirrus-ci-build/build/testrun/test_shm_mq/regress/results/test_shm_mq.out
--- /tmp/cirrus-ci-build/src/test/modules/test_shm_mq/expected/test_shm_mq.out	2024-03-19 15:41:21.014220000 +0000
+++ /tmp/cirrus-ci-build/build/testrun/test_shm_mq/regress/results/test_shm_mq.out	2024-03-19 15:59:50.281337000 +0000
@@ -17,18 +17,21 @@
 (1 row)
 
 SELECT test_shm_mq(32768, (select string_agg(chr(32+(random()*95)::int), '') from generate_series(1,(100+900*random())::int)), 10000, 1);
+WARNING:  outfuncs/readfuncs failed to produce an equal rewritten parse tree
  test_shm_mq 
 -------------
  
 (1 row)
 
 SELECT test_shm_mq(100, (select string_agg(chr(32+(random()*95)::int), '') from generate_series(1,(100+200*random())::int)), 10000, 1);
+WARNING:  outfuncs/readfuncs failed to produce an equal rewritten parse tree
  test_shm_mq 
 -------------
  
 (1 row)
 
 SELECT test_shm_mq_pipelined(16384, (select string_agg(chr(32+(random()*95)::int), '') from generate_series(1,270000)), 200, 3);
+WARNING:  outfuncs/readfuncs failed to produce an equal rewritten parse tree
  test_shm_mq_pipelined 
 -----------------------