galera.galera_gra_log fails with File ...GRA_*.log not found error

galera.galera_gra_log 'innodb_plugin'    w2 [ fail ]

        Test ended at 2018-07-18 04:37:52

CURRENT_TEST: galera.galera_gra_log

/usr/bin/mysqlbinlog: File '/dev/shm/var/2/mysqld.2/data/GRA_*.log' not found (Errcode: 2 "No such file or directory")

mysqltest: At line 26: exec of '/usr/bin/mysqlbinlog --defaults-file=/dev/shm/var/2/my.cnf --local-load=/dev/shm/var/tmp/2 --short-form /dev/shm/var/2/mysqld.2/data/GRA_*.log' failed, error: 256, status: 1, errno: 2

Output from before failure:

/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=1*/;

/*!40019 SET @@session.max_insert_delayed_threads=0*/;