CURRENT_TEST: binlog_encryption.rpl_parallel_innodb_lock_conflict
mysqltest: In included file "./include/wait_for_slave_param.inc": 
included from ./include/wait_for_slave_sql_to_start.inc at line 33:
included from ./include/wait_for_slave_to_start.inc at line 28:
included from ./include/start_slave.inc at line 35:
included from ./suite/rpl/t/rpl_parallel_innodb_lock_conflict.test at line 91:
included from /home/buildbot/buildbot/build/mariadb-10.11.14/mysql-test/suite/binlog_encryption/rpl_parallel_innodb_lock_conflict.test at line 2:
At line 111: query 'let $_show_slave_status_value= query_get_value("SHOW SLAVE STATUS", $slave_param, 1)' failed: <Unknown> (2013): Lost connection to server during query

The result from queries just before the failure was:
< snip >
6	NULL
connection server_1;
DELETE FROM t4;
INSERT INTO t4 VALUES (1,NULL), (2,2), (3,NULL), (4,4), (5, NULL), (6, 6);
connection con1;
SET debug_sync='commit_after_release_LOCK_prepare_ordered SIGNAL master_queued1 WAIT_FOR master_cont1';
INSERT INTO t4 VALUES (7, NULL);
connection server_1;
SET debug_sync='now WAIT_FOR master_queued1';
connection con2;
SET debug_sync='commit_after_release_LOCK_prepare_ordered SIGNAL master_queued2';
DELETE FROM t4 WHERE b <= 3;
connection server_1;
SET debug_sync='now WAIT_FOR master_queued2';
SET debug_sync='now SIGNAL master_cont1';
connection con1;
connection con2;
SET debug_sync='RESET';
connection server_2;
include/start_slave.inc

More results from queries before failure can be found in /dev/shm/var/1/log/rpl_parallel_innodb_lock_conflict.log
