main.tls_version and main.tls_version1 fail in buildbot on RHEL8

main.tls_version1                        w4 [ fail ]

        Test ended at 2019-07-24 18:01:27

CURRENT_TEST: main.tls_version1

ERROR 2026 (HY000): Unknown SSL error

mysqltest: At line 5: exec of '/usr/bin/mysql --defaults-file=/dev/shm/var/4/my.cnf --host=localhost --ssl -e "show status like 'ssl_version';"' failed, error: 256, status: 1, errno: 11

Output from before failure:

 - saving '/dev/shm/var/4/log/main.tls_version1/' to '/dev/shm/var/log/main.tls_version1/'