Build failed. https://zuul.opendev.org/t/openstack/buildset/b6aaf73a6c714655b0ac3774e4fb8df5 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/f85253df6066428a8f80d0c89a653bf8 : FAILURE in 4m 05s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/4b2a44188fcc4542b0a68057f126bf91 : SUCCESS in 2m 57s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/2bfa9b423f1b42a1a70806085d08a163 : FAILURE in 3m 10s