diff --git a/src/librustc_metadata/creader.rs b/src/librustc_metadata/creader.rs
index 7f2a1c0b4b1d1..3e00ba3c62004 100644
--- a/src/librustc_metadata/creader.rs
+++ b/src/librustc_metadata/creader.rs
@@ -95,7 +95,7 @@ enum LoadError<'a> {
 impl<'a> LoadError<'a> {
     fn report(self) -> ! {
         match self {
-            LoadError::LocatorError(mut locate_ctxt) => locate_ctxt.report_errs(),
+            LoadError::LocatorError(locate_ctxt) => locate_ctxt.report_errs(),
         }
     }
 }
@@ -365,8 +365,8 @@ impl<'a> CrateLoader<'a> {
                 span,
                 ident,
                 crate_name: name,
-                hash: hash.map(|a| &*a),
-                extra_filename: extra_filename,
+                hash,
+                extra_filename,
                 filesearch: self.sess.target_filesearch(path_kind),
                 target: &self.sess.target.target,
                 triple: self.sess.opts.target_triple.clone(),
diff --git a/src/librustc_metadata/locator.rs b/src/librustc_metadata/locator.rs
index 7d7dd1061a959..3832c8ee227de 100644
--- a/src/librustc_metadata/locator.rs
+++ b/src/librustc_metadata/locator.rs
@@ -321,7 +321,7 @@ impl<'a> Context<'a> {
         }
     }
 
-    pub fn report_errs(&mut self) -> ! {
+    pub fn report_errs(self) -> ! {
         let add = match self.root {
             &None => String::new(),
             &Some(ref r) => format!(" which `{}` depends on", r.ident),
@@ -901,8 +901,7 @@ fn get_metadata_section_imp(target: &Target,
             let mut inflated = Vec::new();
             match DeflateDecoder::new(compressed_bytes).read_to_end(&mut inflated) {
                 Ok(_) => {
-                    let buf = unsafe { OwningRef::new_assert_stable_address(inflated) };
-                    rustc_erase_owner!(buf.map_owner_box())
+                    rustc_erase_owner!(OwningRef::new(inflated).map_owner_box())
                 }
                 Err(_) => {
                     return Err(format!("failed to decompress metadata: {}", filename.display()));