2 files changed, 2 insertions, 1 deletions
diff --git a/src/compiletest/compiletest.rs b/src/compiletest/compiletest.rs
index 6c1308a01c4..0cfaaae2009 100644
--- a/src/compiletest/compiletest.rs
+++ b/src/compiletest/compiletest.rs
@@ -21,6 +21,7 @@
 #![feature(test)]
 #![feature(unicode)]
 #![feature(env)]
+#![feature(core)]
 
 #![deny(warnings)]
 
diff --git a/src/compiletest/runtest.rs b/src/compiletest/runtest.rs
index 54c011832d1..8da11a9a50d 100644
--- a/src/compiletest/runtest.rs
+++ b/src/compiletest/runtest.rs
@@ -1133,7 +1133,7 @@ fn compile_test_(config: &Config, props: &TestProps,
     // FIXME (#9639): This needs to handle non-utf8 paths
     let mut link_args = vec!("-L".to_string(),
                              aux_dir.as_str().unwrap().to_string());
-    link_args.extend(extra_args.iter().map(|s| s.clone()));
+    link_args.extend(extra_args.iter().cloned());
     let args = make_compile_args(config,
                                  props,
                                  link_args,