TST: Get all tests passing on Cygwin.

The check reference caused docutils problems with no ldesc.
The cygwinccompiler change produced a DeprecationWarning.

Author: DWesl

distutils/command/check.py

@@ -144,7 +144,7 @@ def _check_rst_data(self, data):
         document.note_source(source_path, -1)
         try:
             parser.parse(data, document)
-        except AttributeError as e:
+        except (AttributeError, TypeError) as e:
             reporter.messages.append((
                 -1,
                 f'Could not finish the parsing: {e}.',