Build failed. https://zuul.opendev.org/t/openstack/buildset/0129c8eba89c4c069e4593448f0d4bd4 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/ad0a1f2ca97f491984a64fd34e6b97bd : SUCCESS in 4m 45s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/672faa49c274475793344f6a56dcdf4f : SUCCESS in 3m 07s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/afb64161dd19430b99e01a124b1ee037 : SUCCESS in 4m 37s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/b4f5cd29b7b44401bdc203bc01641400 : FAILURE in 3m 46s