Build failed. https://zuul.opendev.org/t/openstack/buildset/eda86d9a305341afade889d4ef8a29f3 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/1faa6307581d4d91876d256268d8de1c : SUCCESS in 3m 11s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/e62b5a580fed4d5b8b94a989d2213521 : SUCCESS in 3m 31s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/e02e2a47ffc14256be4fd38573e82e45 : FAILURE in 4m 08s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/fb13c3641dc84f5c9b0881ddbb8a1231 : FAILURE in 3m 02s