all: address clippy lints

src/backends/metal/video.rs

@@ -1473,10 +1473,10 @@ fn create_connector_display_data(
         for descriptor in edid.base_block.descriptors.iter().flatten() {
             match descriptor {
                 Descriptor::DisplayProductSerialNumber(s) => {
-                    serial_number = s.clone();
+                    serial_number.clone_from(s);
                 }
                 Descriptor::DisplayProductName(s) => {
-                    name = s.clone();
+                    name.clone_from(s);
                 }
                 _ => {}
             }

src/tree/toplevel.rs

@@ -84,7 +84,11 @@ impl<T: ToplevelNodeBase> ToplevelNode for T {
             parent.node_child_title_changed(self, &title);
         }
         if let Some(data) = data.fullscrceen_data.borrow_mut().deref() {
-            *data.placeholder.tl_data().title.borrow_mut() = title.clone();
+            data.placeholder
+                .tl_data()
+                .title
+                .borrow_mut()
+                .clone_from(&title);
             data.placeholder.tl_title_changed();
         }
     }

src/utils/copyhashmap.rs

@@ -41,26 +41,26 @@ impl<K: Eq + Hash, V> CopyHashMap<K, V> {
         unsafe { self.map.get().deref_mut().insert(k, v) }
     }
 
-    pub fn get<Q: ?Sized>(&self, k: &Q) -> Option<V>
+    pub fn get<Q>(&self, k: &Q) -> Option<V>
     where
         V: UnsafeCellCloneSafe,
-        Q: Hash + Eq,
+        Q: Hash + Eq + ?Sized,
         K: Borrow<Q>,
     {
         unsafe { self.map.get().deref().get(k).cloned() }
     }
 
-    pub fn remove<Q: ?Sized>(&self, k: &Q) -> Option<V>
+    pub fn remove<Q>(&self, k: &Q) -> Option<V>
     where
-        Q: Hash + Eq,
+        Q: Hash + Eq + ?Sized,
         K: Borrow<Q>,
     {
         unsafe { self.map.get().deref_mut().remove(k) }
     }
 
-    pub fn contains<Q: ?Sized>(&self, k: &Q) -> bool
+    pub fn contains<Q>(&self, k: &Q) -> bool
     where
-        Q: Hash + Eq,
+        Q: Hash + Eq + ?Sized,
         K: Borrow<Q>,
     {
         unsafe { self.map.get().deref().contains_key(k) }