Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/4acd48b307b84ac9b729a633547a74d3 : SUCCESS in 3m 39s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/93aafb8a17b54e34b7fdc835b6f6b81b : FAILURE in 3m 03s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/8f35a68828cd44f4bb336b37a8ec0607 : SUCCESS in 3m 45s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/479413d8d79244b682cf64b255bf6f82 : SUCCESS in 5m 32s