rpl.rpl_user_variables failed in buildbot with wrong result

rpl.rpl_user_variables 'row'             w1 [ fail ]

        Test ended at 2019-08-19 22:12:03

CURRENT_TEST: rpl.rpl_user_variables

--- /usr/share/mysql/mysql-test/suite/rpl/r/rpl_user_variables.result	2019-08-19 17:46:30.000000000 -0400

+++ /dev/shm/var/1/log/rpl_user_variables.reject	2019-08-19 22:12:03.317072862 -0400

@@ -188,7 +188,6 @@

 SELECT * from t1;

 a

 500

-625

 DROP TABLE t1;

 DROP FUNCTION f1;

 DROP FUNCTION f2;

@@ -214,11 +213,8 @@

 On slave: Check the tables for correct data and it matches master

 SELECT * from t1;

 i

-5

 SELECT * from t2;

 k

-100

-42

 drop table t1, t2;

 create table t1(a int, b int);

 prepare s1 from 'insert into t1 values (@x:=@x+1, ?)';

@@ -229,7 +225,6 @@

 2	1

 select * from t1;

 a	b

-2	1

 drop table t1;

 create table t1(a int);

 insert into t1 values (1),(2);

@@ -243,9 +238,6 @@

 1

 select * from t1;

 a

-1

-2

-1

 drop table t1;

 End of 5.0 tests.

 DROP FUNCTION IF EXISTS f1;

@@ -270,8 +262,6 @@

 On slave: Check the table for correct data and it matches master

 SELECT * FROM t1;

 i

-133

-123

 DROP FUNCTION f1;

 DROP FUNCTION f2;

 DROP TABLE t1;

mysqltest: Result length mismatch