Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/e6df4a7d140646e49ba84b633ff9b342 : SUCCESS in 3m 58s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/84931e45ec914bed87c01c0bf386004f : FAILURE in 3m 14s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/388ed5a08c714f41ac1b80c92ae4760c : SUCCESS in 3m 24s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/59ac35600cf74c5dbab0438ed59b8fe8 : SUCCESS in 4m 09s