Build failed. https://zuul.opendev.org/t/openstack/buildset/61afc34185fc49e4b7734efb3c1b15c5 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/36c72e3cca5d4b8a928dae5d2b9064fd : SUCCESS in 6m 03s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/ee493ab2415d46f4aa65b821cc2e632f : FAILURE in 3m 52s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/61f3887979d74f9baad5b0b7f2496f77 : SUCCESS in 3m 53s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/51d9d10df32e42b995b451e929d981cb : SUCCESS in 4m 50s