Fix new clippy lints

1 files changed, 4 insertions, 4 deletions

diff --git a/src/librustdoc/json/mod.rs b/src/librustdoc/json/mod.rs
index df97c5ea263..560ed872ef3 100644
--- a/src/librustdoc/json/mod.rs
+++ b/src/librustdoc/json/mod.rs
@@ -73,7 +73,7 @@ impl<'tcx> JsonRenderer<'tcx> {
                     .map(|i| {
                         let item = &i.impl_item;
                         self.item(item.clone()).unwrap();
-                        self.id_from_item(&item)
+                        self.id_from_item(item)
                     })
                     .collect()
             })
@@ -104,7 +104,7 @@ impl<'tcx> JsonRenderer<'tcx> {
 
                         if item.item_id.is_local() || is_primitive_impl {
                             self.item(item.clone()).unwrap();
-                            Some(self.id_from_item(&item))
+                            Some(self.id_from_item(item))
                         } else {
                             None
                         }
@@ -223,7 +223,7 @@ impl<'tcx> FormatRenderer<'tcx> for JsonRenderer<'tcx> {
                 | types::ItemEnum::Macro(_)
                 | types::ItemEnum::ProcMacro(_) => false,
             };
-            let removed = self.index.borrow_mut().insert(new_item.id.clone(), new_item.clone());
+            let removed = self.index.borrow_mut().insert(new_item.id, new_item.clone());
 
             // FIXME(adotinthevoid): Currently, the index is duplicated. This is a sanity check
             // to make sure the items are unique. The main place this happens is when an item, is
@@ -289,7 +289,7 @@ impl<'tcx> FormatRenderer<'tcx> for JsonRenderer<'tcx> {
             format_version: types::FORMAT_VERSION,
         };
         if let Some(ref out_dir) = self.out_dir {
-            try_err!(create_dir_all(&out_dir), out_dir);
+            try_err!(create_dir_all(out_dir), out_dir);
 
             let mut p = out_dir.clone();
             p.push(output_crate.index.get(&output_crate.root).unwrap().name.clone().unwrap());