Build failed. https://zuul.opendev.org/t/openstack/buildset/49077c237e4445428bc14b902eac7b6b - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/82fb8da4639940ffa95dfcf29b2efdcf : SUCCESS in 4m 01s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/73daf9717ff54cb4a131822a9241330a : SUCCESS in 3m 26s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/b8cb4e1b0580408cacaab5e5294bb5fe : SUCCESS in 3m 04s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/a8fae4bab78b4b87974d4359045f5f54 : FAILURE in 3m 27s