Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/e83fb43108d24702a9e30b5ecd4f246b : SUCCESS in 6m 07s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/d9c977cd4d4e4f7d86868fa336849eda : FAILURE in 5m 40s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/7111fa86917d4805ab32feeb9d7f4f8b : SUCCESS in 6m 27s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/94743bb5a8194477b794cbf735049f09 : SUCCESS in 5m 57s