Build failed. https://zuul.opendev.org/t/openstack/buildset/53bb3e41f8d54fc39229b9ee6a13cb3e - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/4f8dc058b22943a2a25a3995974037e8 : SUCCESS in 2m 50s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/44de8d1332da4e81bb0e3185a5a06c51 : FAILURE in 2m 39s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/4bb23371dbcb490ca2b142416bd3a892 : SUCCESS in 2m 53s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/e0317ec6a76348d3a1e3869e2af91a69 : FAILURE in 2m 46s