Build failed. https://zuul.opendev.org/t/openstack/buildset/d54a90b1cbc544a3a3b3566966a1342b - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/46656792cfeb4d66970e81a5941c73cd : RETRY_LIMIT in 1s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/df0a214719be46ca85905a9d68674726 : RETRY_LIMIT in 3s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/b9a27f4236584aeda0140d9a5132d6cb : SUCCESS in 4m 51s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/1eec330b433a4a0094512a751d565395 : RETRY_LIMIT in 2s