Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/c8c600f8fd8f46af8d07e1c22d37d4e3 : SUCCESS in 6m 28s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/46859d85fb5643648d156895ce517540 : FAILURE in 5m 32s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/a820ccb4ba93436a9b6a72b39c9cdb47 : FAILURE in 5m 28s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/512a5312cb734d1d9cb113b9caa31753 : FAILURE in 5m 48s