Build failed. https://zuul.opendev.org/t/openstack/buildset/60f338c2aaca4838ad40ad9eab7a1e2a - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/5fd2162e11da431494cda0168cb543d9 : SUCCESS in 3m 57s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/8cd4d77b65904b0889fdec8fc3d38a4a : SUCCESS in 5m 36s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/f035678d1909473ea100682ddcdf182f : SUCCESS in 4m 33s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/8cd379da89be4cbf88062b625d1300bd : FAILURE in 3m 50s