Build failed. https://zuul.opendev.org/t/openstack/buildset/5227c1b2b7f643a79ffa8ac6d1f06ec9 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/df0d0af9dcbe409d9bda6d185cc1c123 : SUCCESS in 2m 54s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/19fcaaaa8e114fd39e5978111308ad0b : SUCCESS in 4m 01s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/70c1d0316cb64a0a9cafe0d4b8bd6e04 : FAILURE in 2m 44s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/c27994fcb7a141d682baf6c8aa16c9f1 : FAILURE in 2m 51s