rpl.rpl_mdev6386 failed in buildbot

rpl.rpl_mdev6386 'row,xtradb'            w2 [ fail ]

        Test ended at 2016-08-14 10:16:52

CURRENT_TEST: rpl.rpl_mdev6386

--- /usr/local/mariadb-10.0.27-linux-i686/mysql-test/suite/rpl/r/rpl_mdev6386.result	2016-08-14 09:31:19.000000000 +0200

+++ /usr/local/mariadb-10.0.27-linux-i686/mysql-test/suite/rpl/r/rpl_mdev6386.reject	2016-08-14 10:16:52.000000000 +0200

@@ -46,11 +46,6 @@

 Contents on slave after:

 SELECT * FROM t1 ORDER BY a;

 a	b

-1	1

-2	1

-3	1

-4	1

-5	1

 DROP TABLE t1;

 include/stop_slave.inc

 SET GLOBAL slave_parallel_threads= @old_parallel;

mysqltest: Result length mismatch