Build failed. https://zuul.opendev.org/t/openstack/buildset/c39ae66d00e645ab99f1881c9b32f0e1 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/b9e976ce89da40b0b513f328d93114a3 : FAILURE in 3m 20s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/9871d4b389d548a886ad7198b6f227fb : SUCCESS in 3m 51s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/7c0c3e8644cf40cfa25690d0f923b467 : SUCCESS in 2m 58s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/7e108d6ff48147a590b0d724a97d7c73 : SUCCESS in 3m 22s