Build failed. https://zuul.opendev.org/t/openstack/buildset/63ff1f067fd24ce8932b6b31a0a1192d - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/9d49cc58da7047ca8d4c9fe6f37f5af4 : SUCCESS in 3m 11s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/9c4611fcbcdf45a3bae89a78da0051a0 : FAILURE in 2m 50s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/7f2f709ee3ff4fd28007b4c26d90296a : SUCCESS in 2m 51s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/d329bf0879944dc0ba880ea4920b100a : FAILURE in 2m 37s