diff -U3 /tmp/cirrus-ci-build/contrib/pgcrypto/expected/pgp-armor.out /tmp/cirrus-ci-build/build/testrun/pgcrypto/regress/results/pgp-armor.out
--- /tmp/cirrus-ci-build/contrib/pgcrypto/expected/pgp-armor.out	2024-03-21 16:29:25.571077000 +0000
+++ /tmp/cirrus-ci-build/build/testrun/pgcrypto/regress/results/pgp-armor.out	2024-03-21 16:47:59.019133000 +0000
@@ -109,6 +109,7 @@
 =ZZZZ
 -----END PGP MESSAGE-----
 ');
+WARNING:  outfuncs/readfuncs failed to produce an equal rewritten parse tree
 ERROR:  Corrupt ascii-armor
 -- corrupt (no empty line)
 select * from pgp_armor_headers('
@@ -117,6 +118,7 @@
 =ZZZZ
 -----END PGP MESSAGE-----
 ');
+WARNING:  outfuncs/readfuncs failed to produce an equal rewritten parse tree
 ERROR:  Corrupt ascii-armor
 -- no headers
 select * from pgp_armor_headers('
@@ -126,6 +128,7 @@
 =ZZZZ
 -----END PGP MESSAGE-----
 ');
+WARNING:  outfuncs/readfuncs failed to produce an equal rewritten parse tree
  key | value 
 -----+-------
 (0 rows)
@@ -139,6 +142,7 @@
 =ZZZZ
 -----END PGP MESSAGE-----
 ');
+WARNING:  outfuncs/readfuncs failed to produce an equal rewritten parse tree
  key | value 
 -----+-------
  foo | 
@@ -154,6 +158,7 @@
 =ZZZZ
 -----END PGP MESSAGE-----
 ');
+WARNING:  outfuncs/readfuncs failed to produce an equal rewritten parse tree
   key   |  value   
 --------+----------
  fookey | foovalue
@@ -169,6 +174,7 @@
 =ZZZZ
 -----END PGP MESSAGE-----
 ');
+WARNING:  outfuncs/readfuncs failed to produce an equal rewritten parse tree
      key     | value 
 -------------+-------
  insane:key  | 
@@ -183,6 +189,7 @@
 =ZZZZ
 -----END PGP MESSAGE-----
 ');
+WARNING:  outfuncs/readfuncs failed to produce an equal rewritten parse tree
      key     |      value      
 -------------+-----------------
  insane:key  | text value here
@@ -197,6 +204,7 @@
 =ZZZZ
 -----END PGP MESSAGE-----
 ');
+WARNING:  outfuncs/readfuncs failed to produce an equal rewritten parse tree
  key  |                                                      value                                                      
 ------+-----------------------------------------------------------------------------------------------------------------
  long | this value is more than 76 characters long, but it should still parse correctly as that's permitted by RFC 4880
@@ -212,6 +220,7 @@
 =ZZZZ
 -----END PGP MESSAGE-----
 ');
+WARNING:  outfuncs/readfuncs failed to produce an equal rewritten parse tree
  key  |                              value                               
 ------+------------------------------------------------------------------
  long | this value is more than 76 characters long, but it should still 
@@ -229,6 +238,7 @@
 =ZZZZ
 -----END PGP MESSAGE-----
 ');
+WARNING:  outfuncs/readfuncs failed to produce an equal rewritten parse tree
  key  |                      value                      
 ------+-------------------------------------------------
  long | this value is more than 
@@ -251,6 +261,7 @@
 =ZZZZ
 -----END PGP MESSAGE-----
 ');
+WARNING:  outfuncs/readfuncs failed to produce an equal rewritten parse tree
    key    |                      value                      
 ----------+-------------------------------------------------
  emptykey | 
@@ -271,6 +282,7 @@
 =JcP+
 -----END PGP MESSAGE-----
 ');
+WARNING:  outfuncs/readfuncs failed to produce an equal rewritten parse tree
    key   |             value              
 ---------+--------------------------------
  Comment | dat1.blowfish.sha1.mdc.s2k3.z0
@@ -286,6 +298,7 @@
 =ZZZZ
 -----END PGP MESSAGE-----
 ', E'\n', E'\r\n'));
+WARNING:  outfuncs/readfuncs failed to produce an equal rewritten parse tree
   key   |  value   
 --------+----------
  fookey | foovalue
@@ -321,6 +334,7 @@
 select * from pgp_armor_headers(
   armor('zooka', array['Version', 'Comment'],
                  array['Created by pgcrypto', 'PostgreSQL, the world''s most advanced open source database']));
+WARNING:  outfuncs/readfuncs failed to produce an equal rewritten parse tree
    key   |                           value                            
 ---------+------------------------------------------------------------
  Version | Created by pgcrypto
diff -U3 /tmp/cirrus-ci-build/contrib/pgcrypto/expected/pgp-compression.out /tmp/cirrus-ci-build/build/testrun/pgcrypto/regress/results/pgp-compression.out
--- /tmp/cirrus-ci-build/contrib/pgcrypto/expected/pgp-compression.out	2024-03-21 16:29:25.571098000 +0000
+++ /tmp/cirrus-ci-build/build/testrun/pgcrypto/regress/results/pgp-compression.out	2024-03-21 16:47:59.566201000 +0000
@@ -73,6 +73,7 @@
                             'key', 'expect-compress-algo=1')
     AS is_same
   FROM random_string;
+WARNING:  outfuncs/readfuncs failed to produce an equal rewritten parse tree
  is_same 
 ---------
  t