Build failed. https://zuul.opendev.org/t/openstack/buildset/33d7ae6bc3f04e81b5f6b6824818eca0 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/f2cede097e9642068a72138e09ad1c93 : SUCCESS in 4m 18s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/57a9e3c2938142dda33729e10afb31e0 : FAILURE in 4m 22s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/87c1ff5ee1ba4ad58d65579b24ceaceb : SUCCESS in 4m 41s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/b36d42617553496f96db2f89fd23a9d8 : SUCCESS in 6m 18s