Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/9d5a1746b47b4e5dbfb8ac66357d4908 : SUCCESS in 6m 05s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/6447eaba74884c808632a7576a403169 : FAILURE in 4m 23s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/6a050a407c24491c8352d9bfd06aab11 : SUCCESS in 7m 02s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/b25ecee950864fb58dd1710e348fd530 : SUCCESS in 5m 14s