Build failed. https://zuul.opendev.org/t/openstack/buildset/d7ef2a148e7b46e1a9085242052309ce - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/b92b37b232c9414aac1868c34ff6ed7a : SUCCESS in 3m 09s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/ff68ca29d7c448fdb3b851c513b768e7 : SUCCESS in 3m 52s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/85102d9e0cef466999758df6d887fc0e : SUCCESS in 2m 46s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/7222642b62244675af3115f4cc2bc949 : FAILURE in 2m 44s