Build failed. https://zuul.opendev.org/t/openstack/buildset/c3fa3455ae45450a81f58d73ad39289e - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/e4e1f8b33f6a44fabb12d3ddb49b129d : SUCCESS in 3m 57s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/1dc6bbb8e2ae4830924076c1e49db8b5 : FAILURE in 4m 15s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/38b2c8f012e244f7a55da30472e6843e : SUCCESS in 3m 35s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/38002beba52e49bfa43bdb8e02e350dc : SUCCESS in 4m 41s