Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/12af64dc0714495eb76242d18c35cf2b : SUCCESS in 7m 31s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/9f1928d3af34419db1a4f60958e9e6bb : FAILURE in 8m 19s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/9136f5cc72804ee7bf2c6d7ab346f376 : SUCCESS in 6m 57s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/9c4cf29713154f7f830fbc53cdd21e59 : SUCCESS in 8m 03s