Build failed. https://zuul.opendev.org/t/openstack/buildset/cfc3b5e1d2f44b4d8c791b41c41f212c - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/08dfc3db3d324c1fafd012a9c0cd932f : SUCCESS in 3m 31s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/c100d0be0ccd43b6a742ebaa9f77cdcb : SUCCESS in 2m 33s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/99cbaf2cf85544d281b82f22a2ad39e5 : SUCCESS in 3m 25s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/a28e926baf97417797344d81923e7274 : FAILURE in 3m 00s