def missing_output_files(self):
        """Make and return a dictionary of the missing output files.

        This returns a dictionary mapping
        filepath to list of links that produce the file as output.
        """
        missing = self.check_output_files(return_found=False)
        ret_dict = {}
        for miss_file in missing:
            ret_dict[miss_file] = [self.linkname]
        return ret_dict
Make and return a dictionary of the missing output files.

        This returns a dictionary mapping
        filepath to list of links that produce the file as output.