Build failed. https://zuul.opendev.org/t/openstack/buildset/99d973175f694fbeb6036ee6b5f44d23 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/ac03429e6e7946cda76cef3d3ab9545e : SUCCESS in 6m 16s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/84c6ef400875412f87959981d88b6197 : SUCCESS in 5m 17s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/1f5c73cfce5d41a3a1c8fc93f8c08f12 : SUCCESS in 4m 50s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/32a57aaff12a43c78b64d2245856b6d4 : FAILURE in 6m 02s