Better error message in __get_state__ to let a user know that ScriptModules can't be deep-copied atm (#20885)
Summary:
Before we look into supporting `deepcopy` we could at least improve an error msg.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/20885
Differential Revision: D15511023
Pulled By: Krovatkin
fbshipit-source-id: 93b8730a2cc663eee0147f14d3341d0606748eaf
