Fix build script.

Author: reitermarkus

bindgen-integration/build.rs

@@ -2,7 +2,7 @@ extern crate bindgen;
 extern crate cc;
 
 use bindgen::callbacks::{
-    DeriveInfo, IntKind, MacroParsingBehavior, ParseCallbacks,
+    CargoCallbacks, DeriveInfo, IntKind, MacroParsingBehavior, ParseCallbacks,
 };
 use bindgen::{Builder, EnumVariation};
 use std::collections::HashSet;