Build failed. https://zuul.opendev.org/t/openstack/buildset/0b0baebca7dd4eab917013dfb562c2b1 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/7afcffc2ad504d31921d10e45d6f709f : FAILURE in 4m 54s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/30b34e65c7ec4d6fa773ce046e9b2f32 : SUCCESS in 6m 29s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/2e62bc5e1f8444a386e51c70d6f0111f : SUCCESS in 5m 12s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/1c5bcdfa01b64eb78dd8df70fe6e780c : SUCCESS in 7m 21s