main.query_cache failed in buildbot with wrong result

main.query_cache                         w2 [ fail ]

        Test ended at 2017-05-08 12:45:01

CURRENT_TEST: main.query_cache

--- /usr/local/mariadb-10.1.24-linux-i686/mysql-test/r/query_cache.result	2017-05-08 11:15:53.000000000 +0200

+++ /usr/local/mariadb-10.1.24-linux-i686/mysql-test/r/query_cache.reject	2017-05-08 12:45:01.000000000 +0200

@@ -1820,7 +1820,7 @@

 BETWEEN 0 AND @max_acceptable_delay;

 SELECT @aux1 AS "Expect 1";

 Expect 1

-1

+0

 # Test 2: Does the query with SLEEP need a reasonable time even in case

 #         of the non first execution?

 SELECT COUNT(*) >= 4 - 1 - 1 INTO @aux2 FROM t_history

@@ -1836,6 +1836,13 @@

 SELECT @aux3 AS "Expect 1";

 Expect 1

 1

+# Some tests failed, dumping the content of t_history

+SELECT * FROM t_history;

+attempt	start_ts	end_ts	start_cached	end_cached

+1	2017-05-08 12:44:47	2017-05-08 12:44:50	0	0

+2	2017-05-08 12:44:50	2017-05-08 12:44:54	0	0

+3	2017-05-08 12:44:54	2017-05-08 12:44:58	0	0

+4	2017-05-08 12:44:58	2017-05-08 12:45:01	0	0

 DROP TABLE t1;

 DROP TEMPORARY TABLE t_history;

 SET @@global.query_cache_size = default;

mysqltest: Result length mismatch