Fix remaining tests

Lib/test/test_cmd_line_script.py

@@ -574,8 +574,7 @@ class CmdLineTest(unittest.TestCase):
             self.assertTrue(text[1].startswith('  File '))
             self.assertTrue(text[3].startswith('NameError'))
 
-    # TODO: RUSTPYTHON
-    @unittest.expectedFailure
+    @unittest.expectedFailureIf(sys.platform == "linux", "TODO: RUSTPYTHON")
     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