Build failed. https://zuul.opendev.org/t/openstack/buildset/51828e2edc9b4ad2ba862d1d15da9921 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/ba219208b9fb4fb2a60f42d2ca5d2228 : SUCCESS in 4m 02s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/0a0331cbfd014db482dbb64a9c2d2354 : FAILURE in 3m 47s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/7f66aa24cac247e09b0b0b92b75f727f : SUCCESS in 4m 17s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/1d0de38ba1e94d6a9f799986ce5f57b6 : FAILURE in 4m 14s