binlog.binlog_truncate_multi_log_unsafe test fails in buildbot

binlog.binlog_truncate_multi_log_unsafe 'innodb,row' w3 [ fail ]  timeout after 900 seconds

        Test ended at 2021-06-14 14:48:53

Test case timeout after 900 seconds

== /dev/shm/var/3/log/binlog_truncate_multi_log_unsafe.log == 

connection master1;

SET DEBUG_SYNC= "commit_after_release_LOCK_after_binlog_sync SIGNAL master1_ready WAIT_FOR master1_go";

INSERT INTO ti VALUES (5 - 1, REPEAT("x", 4100));

connection master2;

SET DEBUG_SYNC= "commit_before_get_LOCK_commit_ordered SIGNAL master2_ready WAIT_FOR master2_go";

INSERT INTO ti VALUES (5, REPEAT("x", 1));

connection master3;

SET DEBUG_SYNC= "now WAIT_FOR master2_ready";

SET DEBUG_SYNC= "commit_before_get_LOCK_after_binlog_sync SIGNAL master3_ready";

INSERT INTO tm VALUES (2);

connection default;

SET DEBUG_SYNC= "now WAIT_FOR master3_ready";

Warnings:

Warning	1639	debug sync point wait timed out

# The gtid binlog state prior the crash must be restored at the end of the test;

SELECT @@global.gtid_binlog_state;

@@global.gtid_binlog_state

0-1-8

# Kill the server

# Failed restart as the semisync slave