Build failed. https://zuul.opendev.org/t/openstack/buildset/d69764f9b2cd400c977c4a0fe649838c - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/7b9331a32b0e4d09b124671f8fef975b : SUCCESS in 4m 13s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/c64a490e5d09474fbb708a4be7015e65 : SUCCESS in 5m 23s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/0230df169cc14482a19a7075e38164c2 : SUCCESS in 5m 37s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/c45d370de5f04f11b7aea936cfd48140 : FAILURE in 4m 13s