Build failed. https://zuul.opendev.org/t/openstack/buildset/7d569d9a3bbf49aeb5e68184cc47a6a1 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/9de0e029fb3343a78db03d0efda77b69 : SUCCESS in 2m 38s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/c22b787fd51e450bb5fa295b4f8bb4e0 : SUCCESS in 2m 36s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/4775fd9a80eb44b9bb5b78de1b8d4b76 : SUCCESS in 2m 35s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/d5c44f2abb3e4dc9b263a2437f5af4c8 : FAILURE in 2m 40s