Build failed. https://zuul.opendev.org/t/openstack/buildset/94877cb6c4324620bd269d6981e9c1f1 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/32947ffd312142129f9b2e6004e3c974 : FAILURE in 7m 53s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/841c99caccad4a5a8b722aaea874dda5 : SUCCESS in 6m 26s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/b20d5d04fff54b9faa9b87a00560b8c5 : SUCCESS in 6m 07s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/0e3df7ddaf4a425692bd34d939f02e38 : SUCCESS in 7m 29s