diff -U3 /tmp/cirrus-ci-build/src/test/modules/dummy_seclabel/expected/dummy_seclabel.out /tmp/cirrus-ci-build/build/testrun/dummy_seclabel/regress/results/dummy_seclabel.out
--- /tmp/cirrus-ci-build/src/test/modules/dummy_seclabel/expected/dummy_seclabel.out	2024-03-19 13:35:14.042017000 +0000
+++ /tmp/cirrus-ci-build/build/testrun/dummy_seclabel/regress/results/dummy_seclabel.out	2024-03-19 13:53:28.168732000 +0000
@@ -80,6 +80,7 @@
 SECURITY LABEL ON SUBSCRIPTION dummy_sub IS 'classified';
 SELECT objtype, objname, provider, label FROM pg_seclabels
 	ORDER BY objtype, objname;
+WARNING:  outfuncs/readfuncs failed to produce an equal rewritten parse tree
    objtype    |           objname            | provider |    label     
 --------------+------------------------------+----------+--------------
  column       | dummy_seclabel_tbl1.a        | dummy    | unclassified