Build failed. https://zuul.opendev.org/t/openstack/buildset/98a5209afb6544f5a64daa662a4861da - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/45c2649f1b7d4de6973207eb9ec3cfa3 : SUCCESS in 2m 39s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/b467e33d2500450f912c7ca8fc5092a5 : SUCCESS in 2m 45s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/dd6ea8140dd942faa631306afde0bb01 : SUCCESS in 2m 40s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/2b7d7fff4fa84b8aa93653f6bc618a20 : FAILURE in 2m 36s