use clean;
-use std::dynamic_lib as dl;
use serialize::json;
use std::mem;
use std::string::String;
use std::path::PathBuf;
+use rustc_back::dynamic_lib as dl;
+
pub type PluginJson = Option<(String, json::Json)>;
pub type PluginResult = (clean::Crate, PluginJson);
pub type PluginCallback = fn (clean::Crate) -> PluginResult;