Build failed. https://zuul.opendev.org/t/openstack/buildset/1179a4c5738b4ba584005b281c921720 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/1e96c0975d4d41838332fade836b7d39 : SUCCESS in 3m 21s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/166cd2e09bf7454f869feb12b989469f : FAILURE in 2m 51s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/d4ba104c22614a84b131becad72740bb : SUCCESS in 3m 33s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/3168482645d8451bb5bca9a4ff3da725 : SUCCESS in 3m 53s