Build failed. https://zuul.opendev.org/t/openstack/buildset/790f4c01bff8419480297a1fbba3aff6 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/00d7a9c36b334990bb93bf1221dcf02f : SUCCESS in 3m 16s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/375b840bd23d422baf9668bdd4956050 : SUCCESS in 3m 30s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/13b4cf4e610a4b279c1590d3e7b59bba : SUCCESS in 3m 37s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/c4a5c4db0a7c45538b3a45d61f5c622c : FAILURE in 3m 13s