Build failed. https://zuul.opendev.org/t/openstack/buildset/a49ef1b01d514ee989b9cb79cc3bcee7 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/a97beb745a2d452ab118328f50b15516 : SUCCESS in 4m 08s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/799a8ac783f141da881dfd1d43b5cf23 : FAILURE in 3m 03s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/713be27e4d0f4b76a792b45571b922c6 : SUCCESS in 3m 57s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/a41ba0a0f7ec4bf0a2c2fbb5527fa490 : SUCCESS in 4m 48s