Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/93101b5677db4ad4b6caae3958ed38e9 : SUCCESS in 4m 35s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/173b400a036d4f589b39525aece96f78 : FAILURE in 6m 48s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/596295abeee3448d951bffada710805d : SUCCESS in 4m 16s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/a68ee6424a8742cb83e3c0b568e84c19 : SUCCESS in 5m 34s