Build failed. https://zuul.opendev.org/t/openstack/buildset/34fb31ad4b8546f8b007b247a8ce78e2 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/94f1d9b907b8456dab95b39af5113b74 : SUCCESS in 2m 58s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/5367eaaf4bd3464f86c341d9e48f0e40 : SUCCESS in 4m 17s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/f1d3694356a141dfa76bd1296bc3e0db : SUCCESS in 2m 55s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/139c4afd95584fd68f0af2f27cc7afa4 : FAILURE in 2m 46s