Build failed. https://zuul.opendev.org/t/openstack/buildset/3a51de98823e4a3db3692fa7ae19d5ec - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/77fa0d254db048e28b4f589814f22cd2 : SUCCESS in 3m 02s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/458be838c8d040adac4559f08c728dba : SUCCESS in 3m 16s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/47b335b992744cefb9c87c617c606e84 : FAILURE in 3m 04s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/3cf498615cee46c5ac5b590345d0f283 : FAILURE in 2m 42s