Build failed. https://zuul.opendev.org/t/openstack/buildset/a17bce1c512c4c86bdb6dcdae24a0d53 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/fa91c6b59b0e400a89fd5ba189dcb3bc : SUCCESS in 3m 03s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/82896179d3834c12b682ada0c40e0af0 : FAILURE in 3m 00s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/8d77a66fd1504cc59257dfe196b817f8 : SUCCESS in 2m 59s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/1ed403642f674be0a97fd219238d9ccf : FAILURE in 2m 39s