Build failed. https://zuul.opendev.org/t/openstack/buildset/e51ea39aef3a4356b0d2427c292a7fa0 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/797be4ead71e4db2bbf4d3a8eba9fd53 : FAILURE in 5m 46s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/f55ca9c720c74cbe9fa2bd71da51148d : SUCCESS in 3m 26s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/fc90272bb8824acc992920b1052c2e92 : SUCCESS in 3m 25s