Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/eff344e79662414498cd5a712daf1435 : SUCCESS in 7m 57s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/75e72e1209ec4be883fe25347b63705d : FAILURE in 4m 18s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/70a4f0eb0255440e97663b7a79701db7 : SUCCESS in 6m 39s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/b11512de09a84e929ad8e84dc4af46f9 : SUCCESS in 7m 37s