Build failed. https://zuul.opendev.org/t/openstack/buildset/95072f6d705c4b9d9460900d4aab4f73 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/e8b97a14b9c74102b45597cb9f4bb771 : SUCCESS in 2m 52s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/5379a20d6c47400187156fdafde24b8c : SUCCESS in 2m 44s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/4afb67d0ce674dbb8351e2e1c6c9b32c : SUCCESS in 3m 18s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/a1e9de80422f4d6f96fe519c7ae67856 : FAILURE in 2m 46s