sys_vars.innodb_status_output_basic failed with timeout in buildbot on centos5

sys_vars.innodb_status_output_basic 'innodb_plugin' w4 [ fail ]  timeout after 900 seconds

        Test ended at 2017-02-23 16:00:09

Test case timeout after 900 seconds

== /usr/local/mariadb-10.0.30-linux-x86_64/mysql-test/var/4/log/innodb_status_output_basic.log == 

VARIABLE_NAME	VARIABLE_VALUE

INNODB_STATUS_OUTPUT	ON

set global innodb_status_output=0;

select @@global.innodb_status_output;

@@global.innodb_status_output

0

select * from information_schema.global_variables where variable_name='innodb_status_output';

VARIABLE_NAME	VARIABLE_VALUE

INNODB_STATUS_OUTPUT	OFF

select * from information_schema.session_variables where variable_name='innodb_status_output';

VARIABLE_NAME	VARIABLE_VALUE

INNODB_STATUS_OUTPUT	OFF

set @@global.innodb_status_output='ON';

select @@global.innodb_status_output;

@@global.innodb_status_output

1

select * from information_schema.global_variables where variable_name='innodb_status_output';

VARIABLE_NAME	VARIABLE_VALUE

INNODB_STATUS_OUTPUT	ON

select * from information_schema.session_variables where variable_name='innodb_status_output';