Build failed. https://zuul.opendev.org/t/openstack/buildset/66964332768b41bab1cdc58312326bb2 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/8b74184e8f564ec18194bf85ea3f3226 : SUCCESS in 3m 09s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/009b54a4ff7c4f0b9e2d46344fa84b16 : SUCCESS in 2m 54s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/6484d3d088074528a0589f24b86a12d8 : SUCCESS in 2m 57s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/66bba7037cda4985abab99743a672f3d : FAILURE in 3m 02s