diff -U3 /Users/admin/pgsql/src/test/isolation/expected/timeouts.out /Users/admin/pgsql/build/testrun/isolation/isolation/results/timeouts.out
--- /Users/admin/pgsql/src/test/isolation/expected/timeouts.out	2024-02-24 02:17:20
+++ /Users/admin/pgsql/build/testrun/isolation/isolation/results/timeouts.out	2024-02-24 02:26:03
@@ -128,6 +128,7 @@
 starting permutation: tito s5_begin checker_sleep s5_check
 step tito: SET idle_in_transaction_session_timeout = '1s'; SET transaction_timeout = '10ms';
 step s5_begin: BEGIN ISOLATION LEVEL READ COMMITTED;
+s5: FATAL:  terminating connection due to transaction timeout
 step checker_sleep: SELECT pg_sleep(0.1);
 pg_sleep
 --------