Build failed. https://zuul.opendev.org/t/openstack/buildset/06093db4f95843a8bebe1164b3a78d59 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/fd3fa39fab87439bb4ac76d4791a3d9b : SUCCESS in 5m 49s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/5a8067b34dd3465aabf8dee005cb5c71 : RETRY_LIMIT in 2m 47s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/6e37a6032f934ec3a1c519125726fd23 : SUCCESS in 4m 35s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/c605a76737b84423bf6211c8019daed1 : SUCCESS in 9m 02s