Build failed. https://zuul.opendev.org/t/openstack/buildset/7f9504f589a04f219524d152a6984e44 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/a1bc958786bd4c9dbcb66023da8cbe9b : SUCCESS in 3m 47s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/18b8eb7be4d54cb3ad24ed34c4dced4e : SUCCESS in 2m 50s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/930d0e97f8c84a7c987ad4c7d1ee1e4d : SUCCESS in 4m 24s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/2f0a45460f034e729bab833b0e41542e : RETRY_LIMIT in 2s