Build failed. https://zuul.opendev.org/t/openstack/buildset/6708432a61db46699b68698540b9443f - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/0f15984eec1448f496e38dff16e682c2 : SUCCESS in 3m 39s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/10fd2128d3b44ef69bb3735e8339196f : FAILURE in 3m 50s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/d2f64b9109b54043af90c8cebc861c16 : FAILURE in 4m 37s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/3ca991ba5b1847a9a7a76f661ebb1ff3 : FAILURE in 3m 08s