Build failed. https://zuul.opendev.org/t/openstack/buildset/b1e0eabe75e04f7f9cd50cfac2a82ea9 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/a91f66840d294018b4fda4627428550d : SUCCESS in 7m 31s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/666b6d3ac5124008a073bfdfd7da04ae : FAILURE in 3m 29s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/a4f8d71205d842b2a20ea5effff87c14 : SUCCESS in 6m 47s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/0ba9469ae8fb41f69ed5e02b7eb9f04c : SUCCESS in 5m 49s