Build failed. https://zuul.opendev.org/t/openstack/buildset/36269e0cb38a42ac9e81ed2faa0bc06c - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/6198778a13434ef5b9235ffd9efa3bce : SUCCESS in 2m 36s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/4c4f9d08f04941dcb699cef6ed6039fb : FAILURE in 2m 46s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/b454229a4fe14a3b816e6254b4cb9d8c : SUCCESS in 2m 45s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/01e1fbf943134d8e92259b63602537ed : FAILURE in 2m 26s