CURRENT_TEST: rpl.rpl_semi_sync
mysqltest: In included file "./include/end_include_file.inc": 
included from ./include/rpl_sync.inc at line 162:
included from ./include/rpl_end.inc at line 80:
included from /home/buildbot/buildbot/build/mariadb-10.11.14/mysql-test/suite/rpl/t/rpl_semi_sync.test at line 544:
At line 72: query 'let $_include_file_indent= `SELECT REPEAT('.', $_include_file_depth)`' failed: <Unknown> (2013): Lost connection to server during query

The result from queries just before the failure was:
< snip >
Rpl_semi_sync_slave_status	OFF
#
# Clean up
#
connection slave;
include/stop_slave.inc
set global rpl_semi_sync_slave_enabled= 0;
connection master;
set global rpl_semi_sync_master_enabled= 0;
connection slave;
change master to master_user='root',master_password='';
include/start_slave.inc
connection master;
drop table t1;
connection slave;
connection master;
drop user rpl@127.0.0.1;
flush privileges;
set global rpl_semi_sync_master_timeout= default;
include/rpl_end.inc

More results from queries before failure can be found in /dev/shm/var/4/log/rpl_semi_sync.log
