Build failed. https://zuul.opendev.org/t/openstack/buildset/a0596ceb66af4f89afb456a1d669b346 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/8ee8996575924a06a57d3d081f3c3616 : SUCCESS in 3m 48s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/37859c4fa01f42a580144e4123276608 : FAILURE in 2m 58s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/bc265f81461942faafd1811307dd2737 : SUCCESS in 3m 56s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/ff6ffe2eb5bd4260b6f92d8a5558ebda : SUCCESS in 5m 06s