Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/d28a770f05b04b47a2209271df8b17f9 : SUCCESS in 8m 08s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/4e1cba66d9cc48748198432e4254f784 : FAILURE in 4m 24s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/c8da79d225c046d39086ba9e67d4731e : SUCCESS in 23m 47s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/c402e739663d4c86936db9a3622fcaf2 : SUCCESS in 21m 38s