innodb.innodb_buffer_pool_dump_pct failed in buildbot with timeout in wait_condition.inc

innodb.innodb_buffer_pool_dump_pct 'innodb' w3 [ fail ]

        Test ended at 2019-07-03 08:56:14

CURRENT_TEST: innodb.innodb_buffer_pool_dump_pct

--- /usr/local/mariadb-10.2.26-linux-x86_64/mysql-test/suite/innodb/r/innodb_buffer_pool_dump_pct.result	2019-07-03 07:37:15.000000000 -0400

+++ /usr/local/mariadb-10.2.26-linux-x86_64/mysql-test/suite/innodb/r/innodb_buffer_pool_dump_pct.reject	2019-07-03 08:56:14.217187024 -0400

@@ -17,6 +17,18 @@

 FROM information_schema.global_status

 WHERE variable_name = 'INNODB_BUFFER_POOL_DUMP_STATUS';

 SET GLOBAL innodb_buffer_pool_dump_now=ON;

+Timeout in wait_condition.inc for SELECT count(*) = 1

+FROM information_schema.global_status

+WHERE variable_name = 'INNODB_BUFFER_POOL_DUMP_STATUS'

+AND variable_value != @IBPDS

+AND variable_value like 'Buffer pool(s) dump completed at%'

+Id	User	Host	db	Command	Time	State	Info	Progress

+1	system user		NULL	Daemon	NULL	InnoDB purge coordinator	NULL	0.000

+2	system user		NULL	Daemon	NULL	InnoDB purge worker	NULL	0.000

+3	system user		NULL	Daemon	NULL	InnoDB purge worker	NULL	0.000

+4	system user		NULL	Daemon	NULL	InnoDB purge worker	NULL	0.000

+5	system user		NULL	Daemon	NULL	InnoDB shutdown handler	NULL	0.000

+16	root	localhost	test	Query	0	init	show full processlist	0.000

 SET GLOBAL innodb_buffer_pool_dump_pct=DEFAULT;

 SET GLOBAL innodb_buffer_pool_filename=DEFAULT;

 DROP TABLE tab5;

mysqltest: Result length mismatch