Build failed. https://zuul.opendev.org/t/openstack/buildset/34fe6ed85afd41daa27fc5d4ee4fcff0 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/3103735cf7e042f5a09ea5b20598c792 : SUCCESS in 3m 49s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/23412969e9864e2e8b98336c22505c14 : FAILURE in 3m 32s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/d5b3be22117f44b3b402bf6becb3bc31 : SUCCESS in 4m 32s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/f8ded6d457ac42989cf022bff58543c3 : SUCCESS in 5m 16s