Revert incorrect map(|x| *x) -> cloned() substitutions.

Author: ruuda

src/librustc_back/rpath.rs

@@ -41,7 +41,7 @@ pub fn get_rpath_flags<F, G>(config: RPathConfig<F, G>) -> Vec<String> where
 
     let libs = config.used_crates.clone();
     let libs = libs.into_iter().filter_map(|(_, l)| {
-        l.cloned()
+        l.map(|p| p.clone())
     }).collect::<Vec<_>>();
 
     let rpaths = get_rpaths(config, &libs[]);

src/libtest/lib.rs

@@ -938,7 +938,7 @@ fn calc_result(desc: &TestDesc, task_result: Result<(), Box<Any+Send>>) -> TestR
         (&ShouldFail::Yes(Some(msg)), Err(ref err))
             if err.downcast_ref::<String>()
                 .map(|e| &**e)
-                .or_else(|| err.downcast_ref::<&'static str>().cloned())
+                .or_else(|| err.downcast_ref::<&'static str>().map(|e| *e))
                 .map(|e| e.contains(msg))
                 .unwrap_or(false) => TrOk,
         _ => TrFailed,