Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/1428eeb72ed4453ba9eaf4c44e91e318 : SUCCESS in 7m 43s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/2ad391d6e3924618a302215e046f7541 : FAILURE in 6m 37s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/7b0b3b2315264b699328f5e6cec8df9a : SUCCESS in 7m 40s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/da05d52dcdd24e4fb9d6e9609c2033a2 : SUCCESS in 8m 31s