Build failed. https://zuul.opendev.org/t/openstack/buildset/73dce97739fd463492f4423e73d78a24 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/ccb66641a6934726929859f3430f4b25 : SUCCESS in 4m 18s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/029036963759444d8ab766480dfe48a9 : SUCCESS in 6m 09s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/37b97c602f0b4a7aa92bdcab93957985 : SUCCESS in 6m 00s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/271bfc27349a40fdb133eebb74ffea6b : FAILURE in 4m 20s