Build failed. https://zuul.opendev.org/t/openstack/buildset/4df0d57d3d3d4321bf51b7048a0af0d5 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/8908f3e8755f4c1e992f8c83a883618f : SUCCESS in 3m 27s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/b06673e7750443b5b011dd3b52cf9e70 : SUCCESS in 3m 35s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/9e9d05ba43c34fb7ac97dfc51cb62dbf : SUCCESS in 2m 37s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/b0035a339a3b4eba8a91b21a077bc5ec : FAILURE in 3m 05s