./mtr multi_source.multisource --repeat=2 

multi_source.multisource 'innodb_plugin' [ pass ]   3651

multi_source.multisource 'innodb_plugin' [ fail ]

        Test ended at 2019-12-11 19:31:46

CURRENT_TEST: multi_source.multisource

mysqltest: In included file "./extra/rpl_tests/multisource.inc": 

included from /git/10.1/mysql-test/suite/multi_source/multisource.test at line 2:

At line 28: query 'change master 'abc' to relay_log_file=''' failed with wrong errno 1201: 'Could not initialize master info structure for 'abc'; more error messages can be found in the MariaDB error log', instead of 1380...

The result from queries just before the failure was:

change master 'abc' to relay_log_file='';

 - saving '/git/10.1/mysql-test/var/log/multi_source.multisource-innodb_plugin/' to '/git/10.1/mysql-test/var/log/multi_source.multisource-innodb_plugin/'

***Warnings generated in error logs during shutdown after running tests: multi_source.multisource

2019-12-11 19:31:46 140534218184448 [ERROR] Failed to open the relay log './' (relay_log_pos 4)

2019-12-11 19:31:46 140534218184448 [ERROR] Could not find target log during relay log initialization

binlog_encryption.multisource 'innodb_plugin' [ fail ]

        Test ended at 2019-12-11 19:30:33

CURRENT_TEST: binlog_encryption.multisource

mysqltest: In included file "./extra/rpl_tests/multisource.inc": 

included from /git/10.1/mysql-test/suite/binlog_encryption/multisource.test at line 3:

At line 28: query 'change master 'abc' to relay_log_file=''' failed with wrong errno 1201: 'Could not initialize master info structure for 'abc'; more error messages can be found in the MariaDB error log', instead of 1380...

The result from queries just before the failure was:

change master 'abc' to relay_log_file='';

 - saving '/git/10.1/mysql-test/var/log/binlog_encryption.multisource-innodb_plugin/' to '/git/10.1/mysql-test/var/log/binlog_encryption.multisource-innodb_plugin/'

***Warnings generated in error logs during shutdown after running tests: binlog_encryption.multisource

2019-12-11 19:30:33 139749230360320 [ERROR] Failed to open the relay log './' (relay_log_pos 4)

2019-12-11 19:30:33 139749230360320 [ERROR] Could not find target log during relay log initialization