Build failed. https://zuul.opendev.org/t/openstack/buildset/3147caa2721e46b3a290a038a91debbf - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/1a554821d0894c71a7ce2f69cf3ad116 : FAILURE in 3m 03s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/86515148231949bd9be73fdd4f5c019f : SUCCESS in 3m 24s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/f5b7beb5459046ffaacf07d72f19a669 : SUCCESS in 4m 02s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/2fec7c58bee945bd9ad90e959bcce4ff : SUCCESS in 3m 45s