Build failed. https://zuul.opendev.org/t/openstack/buildset/a8925a45504e4ea4a60f7e72b26fc25d - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/4253826c378742f7bc8cb733fdad98ab : SUCCESS in 2m 45s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/e2ec51acabd043a995cb3c8e0f95dfd5 : SUCCESS in 2m 30s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/7df9d00008334854820be7d59b1d8ec0 : SUCCESS in 2m 58s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/2e11318dcfd740ed9c8ad65b18599560 : FAILURE in 2m 45s