Build failed. https://zuul.opendev.org/t/openstack/buildset/f8b6106f2b4f4fa59bdd81c244b96605 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/d8820ef8cd714b0d9ce7beb3347ae75d : SUCCESS in 3m 28s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/2798fdab2b42453babf739db6d1da5ad : FAILURE in 2m 52s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/fd31ad2f1e0f4c6b9434edff0a662eed : SUCCESS in 3m 08s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/2ae6241f95404f84b8d5f5a508b391c9 : SUCCESS in 3m 38s