Build failed. https://zuul.opendev.org/t/openstack/buildset/cce1f75820e14fc4bba81f866ca5e629 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/b8fdb5d8d20242238b0c7706cfd3dbee : SUCCESS in 4m 44s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/d7a2d10d05b948728ef3db8fc7a6808e : SUCCESS in 5m 32s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/fff42960c5fc4410b9ff5aac671710c1 : SUCCESS in 5m 47s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/e48e0781de92490ea537d56f8e8a5b93 : FAILURE in 4m 39s