Build failed. https://zuul.opendev.org/t/openstack/buildset/24ff07b92cc9409ebe953bfd7f647a90 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/1d3ead72f9d24987a0b3d0d02c815a60 : SUCCESS in 3m 08s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/afc954e5511645179e2d47a6c5327874 : FAILURE in 2m 21s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/32ee89b8b362420b8b2ee37b7a397e51 : SUCCESS in 2m 53s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/3f90d74f353748eab2676236422146ce : FAILURE in 2m 55s