Build failed. https://zuul.opendev.org/t/openstack/buildset/4c318c3d5e3945bd8e76cb43049e251c - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/979d915b564441919b744977ee50cf2d : SUCCESS in 3m 35s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/f114920718924cdbb06da252fbd13622 : FAILURE in 3m 37s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/a9e4fc420a984d7499ca09b1c427c7db : SUCCESS in 3m 12s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/8e734e57bc55463fa26fbae4ce910bd3 : SUCCESS in 4m 35s