Build failed. https://zuul.opendev.org/t/openstack/buildset/da8eb90acbed4207a0e4f24ee757cc44 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/e1c68ddd34874f908a604caa9b55879f : SUCCESS in 8m 41s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/0f3e6a9b795d4403b74a4627a80072a6 : RETRY_LIMIT in 2s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/11cd40bd0f7b47d6954186ffce47d3bc : RETRY_LIMIT in 2s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/c846e848e0b64fb891d6c43949238a7f : SUCCESS in 18m 30s