Build failed. https://zuul.opendev.org/t/openstack/buildset/f51f17a18d894a7f8cbf906c6f8723c0 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/71915f6d16674e07a31d8ac352fad399 : SUCCESS in 3m 02s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/aa62b4be733149aface460ab87de3f62 : SUCCESS in 3m 08s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/a54d34b1492043a5948d78f9c2707be2 : SUCCESS in 3m 03s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/10a0c19a92ee4420b9dc8743dd1b2927 : FAILURE in 3m 04s