Build failed. https://zuul.opendev.org/t/openstack/buildset/f951279499fb4099b1b22a1696e9850a - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/ff12b1a63362410c816e6899a6d05653 : SUCCESS in 4m 50s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/c1a984cde2ca4b1ebbd815e477af41cb : FAILURE in 4m 17s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/852b6f2e76d8467c9e9015d3a6f4545b : SUCCESS in 4m 42s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/bfcfa3d18e614edfa30e6b7016b2e8b2 : SUCCESS in 5m 51s