Add expectedFailure tag to test_non_ascii

Author: key262yek

Lib/test/test_cmd_line_script.py

@@ -579,6 +579,8 @@ def test_pep_409_verbiage(self):
             self.assertTrue(text[1].startswith('  File '))
             self.assertTrue(text[3].startswith('NameError'))
 
+    # TODO: RUSTPYTHON
+    @unittest.expectedFailure
     def test_non_ascii(self):
         # Mac OS X denies the creation of a file with an invalid UTF-8 name.
         # Windows allows creating a name with an arbitrary bytes name, but