Report docker push / pull time (#26861)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/26861
Signed-off-by: Edward Z. Yang <ezyang@fb.com>
Test Plan: Imported from OSS
Differential Revision: D17712801
Pulled By: ezyang
fbshipit-source-id: 504594452e6594d79e41856ce5177ab370dc26f1
