rpl.bug62557 does not clean up after itself, failing rpl_master_pos_wait

190301 20:22:27 [ 17%] rpl.rpl_master_pos_wait 'mix'            w5  [ fail ]
        Test ended at 2019-03-01 20:22:27

CURRENT_TEST: rpl.rpl_master_pos_wait
--- /tmp/results/PS/mysql-test/suite/rpl/r/rpl_master_pos_wait.result	2019-03-01 14:46:52.000000000 +0300
+++ /tmp/results/PS/mysql-test/var/5/log/rpl_master_pos_wait.reject	2019-03-01 23:22:27.586190818 +0300
@@ -21,6 +21,65 @@
 NULL
 "*** must be empty ***"
 show slave status;
+Slave_IO_State	
+Master_Host	127.0.0.1
+Master_User	root
+Master_Port	13092
+Connect_Retry	1
+Master_Log_File	
+Read_Master_Log_Pos	4
+Relay_Log_File	
+Relay_Log_Pos	0
+Relay_Master_Log_File	
+Slave_IO_Running	No
+Slave_SQL_Running	No
+Replicate_Do_DB	
+Replicate_Ignore_DB	
+Replicate_Do_Table	
+Replicate_Ignore_Table	
+Replicate_Wild_Do_Table	
+Replicate_Wild_Ignore_Table	
+Last_Errno	0
+Last_Error	
+Skip_Counter	0
+Exec_Master_Log_Pos	0
+Relay_Log_Space	0
+Until_Condition	None
+Until_Log_File	
+Until_Log_Pos	0
+Master_SSL_Allowed	No
+Master_SSL_CA_File	
+Master_SSL_CA_Path	
+Master_SSL_Cert	
+Master_SSL_Cipher	
+Master_SSL_Key	
+Seconds_Behind_Master	NULL
+Master_SSL_Verify_Server_Cert	No
+Last_IO_Errno	0
+Last_IO_Error	
+Last_SQL_Errno	0
+Last_SQL_Error	
+Replicate_Ignore_Server_Ids	
+Master_Server_Id	0
+Master_UUID	
+Master_Info_File	mysql.slave_master_info
+SQL_Delay	0
+SQL_Remaining_Delay	NULL
+Slave_SQL_Running_State	
+Master_Retry_Count	86400
+Master_Bind	
+Last_IO_Error_Timestamp	
+Last_SQL_Error_Timestamp	
+Master_SSL_Crl	
+Master_SSL_Crlpath	
+Retrieved_Gtid_Set	
+Executed_Gtid_Set	
+Auto_Position	0
+Replicate_Rewrite_DB	
+Channel_Name	
+Master_TLS_Version	
+Master_public_key_path	
+Get_master_public_key	0
 "*** must be NULL ***"
 select master_pos_wait('foo', 98);
 master_pos_wait('foo', 98)

mysqltest: Result content mismatch

2019-03-01T20:22:17.386389Z 0 [Note] [MY-011025] [Repl] Failed to start slave threads for channel ''.