Report tesnro_expr test results (#36684)
Summary:
Also download MNIST dataset in background while jit tests are running
Pull Request resolved: https://github.com/pytorch/pytorch/pull/36684
Differential Revision: D21059045
Pulled By: malfet
fbshipit-source-id: 9904be303763e9891f1818c1334f328bc0d0e4a7
