Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/c647ee0cd41747ca84fdff8205665af0 : SUCCESS in 10m 28s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/5cccdea780b642a69daa9a609e14a7a2 : FAILURE in 6m 20s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/f07df2938d56476f959273429885295b : SUCCESS in 8m 39s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/008a36d437784e63b8ca0e60f8a2d4af : SUCCESS in 10m 53s