Give new signature the desirable name
diff --git a/src/file.rs b/src/file.rs
index 9b5b11f..a3ce02b 100644
--- a/src/file.rs
+++ b/src/file.rs
@@ -92,7 +92,7 @@
 
     impl Synom for File {
         named!(parse -> Self, do_parse!(
-            attrs: many0!(Attribute::parse_inner) >>
+            attrs: many0!(Attribute::old_parse_inner) >>
             items: many0!(Item::parse) >>
             (File {
                 shebang: None,