funcs_2.myisam_charset failed in buildbot

funcs_2.myisam_charset                   w3 [ fail ]  timeout after 900 seconds

        Test ended at 2016-11-07 19:44:22

Test case timeout after 900 seconds

== /usr/local/mariadb-10.1.20-linux-x86_64/mysql-test/var/3/log/myisam_charset.log == 

AE	1

AF	1

B0	1

B1	1

B2	1

B5	1

B8	1

B9	1

BA	1

BB	1

BC	1

BE	1

BF	1

DROP TABLE IF EXISTS test.t1;

DROP TABLE IF EXISTS test.t1;

SET NAMES latin1;

CREATE TABLE test.t1 (a VARCHAR(3) CHARACTER SET latin1 COLLATE latin1_bin) ENGINE=MyISAM CHARACTER SET latin1 COLLATE latin1_bin;

SHOW TABLE STATUS LIKE 't1';

Name	Engine	Version	Row_format	Rows	Avg_row_length	Data_length	Max_data_length	Index_length	Data_free	Auto_increment	Create_time	Update_time	Check_time	Collation	Checksum	Create_options	Comment

t1	MyISAM	#	#	#	#	#	#	#	#	#	#	#	#	latin1_bin	#	#	#

 == /usr/local/mariadb-10.1.20-linux-x86_64/mysql-test/var/3/tmp/analyze-timeout-mysqld.1.err ==

mysqltest: Could not open connection 'default' after 500 attempts: 2002 Can't connect to local MySQL server through socket '/usr/local/mariadb-10.1.20-linux-x86_64/mysql-test/var/tmp/3/mysqld.1.sock' (111 "Connection refused")