Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/190898169a1d4fb0ae2f89341024c354 : SUCCESS in 5m 40s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/1fac569095484a068112ba88e68d21c2 : SUCCESS in 5m 54s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/5f68bd18ac7d43a0b19774b195e1e95c : SUCCESS in 5m 39s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/d354ca10a8174c32b9aafbb71291f831 : FAILURE in 5m 22s