Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/6ead5bf296ea4c89b4717def42553aa8 : SUCCESS in 8m 31s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/381d667157604c26b3983f93daff4edc : FAILURE in 3m 46s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/bb553327a9c046279512c96468821afe : SUCCESS in 4m 44s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/06c9017315e04769a70ec0d6a2b9c346 : SUCCESS in 5m 53s