Rust 1.85 (#25272)

Closes #ISSUE

Release Notes:

- N/A *or* Added/Fixed/Improved ...

---------

Co-authored-by: Anthony Eid <hello@anthonyeid.me>

crates/sum_tree/src/cursor.rs

@@ -9,7 +9,7 @@ struct StackEntry<'a, T: Item, D> {
     position: D,
 }
 
-impl<'a, T: Item + fmt::Debug, D: fmt::Debug> fmt::Debug for StackEntry<'a, T, D> {
+impl<T: Item + fmt::Debug, D: fmt::Debug> fmt::Debug for StackEntry<'_, T, D> {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         f.debug_struct("StackEntry")
             .field("index", &self.index)
@@ -27,7 +27,7 @@ pub struct Cursor<'a, T: Item, D> {
     at_end: bool,
 }
 
-impl<'a, T: Item + fmt::Debug, D: fmt::Debug> fmt::Debug for Cursor<'a, T, D>
+impl<T: Item + fmt::Debug, D: fmt::Debug> fmt::Debug for Cursor<'_, T, D>
 where
     T::Summary: fmt::Debug,
 {
@@ -742,14 +742,14 @@ struct SliceSeekAggregate<T: Item> {
 
 struct SummarySeekAggregate<D>(D);
 
-impl<'a, T: Item> SeekAggregate<'a, T> for () {
+impl<T: Item> SeekAggregate<'_, T> for () {
     fn begin_leaf(&mut self) {}
     fn end_leaf(&mut self, _: &<T::Summary as Summary>::Context) {}
     fn push_item(&mut self, _: &T, _: &T::Summary, _: &<T::Summary as Summary>::Context) {}
     fn push_tree(&mut self, _: &SumTree<T>, _: &T::Summary, _: &<T::Summary as Summary>::Context) {}
 }
 
-impl<'a, T: Item> SeekAggregate<'a, T> for SliceSeekAggregate<T> {
+impl<T: Item> SeekAggregate<'_, T> for SliceSeekAggregate<T> {
     fn begin_leaf(&mut self) {}
     fn end_leaf(&mut self, cx: &<T::Summary as Summary>::Context) {
         self.tree.append(

crates/sum_tree/src/sum_tree.rs

@@ -1468,7 +1468,7 @@ mod tests {
         }
     }
 
-    impl<'a> Dimension<'a, IntegersSummary> for u8 {
+    impl Dimension<'_, IntegersSummary> for u8 {
         fn zero(_cx: &()) -> Self {
             Default::default()
         }
@@ -1478,7 +1478,7 @@ mod tests {
         }
     }
 
-    impl<'a> Dimension<'a, IntegersSummary> for Count {
+    impl Dimension<'_, IntegersSummary> for Count {
         fn zero(_cx: &()) -> Self {
             Default::default()
         }
@@ -1488,13 +1488,13 @@ mod tests {
         }
     }
 
-    impl<'a> SeekTarget<'a, IntegersSummary, IntegersSummary> for Count {
+    impl SeekTarget<'_, IntegersSummary, IntegersSummary> for Count {
         fn cmp(&self, cursor_location: &IntegersSummary, _: &()) -> Ordering {
             self.0.cmp(&cursor_location.count)
         }
     }
 
-    impl<'a> Dimension<'a, IntegersSummary> for Sum {
+    impl Dimension<'_, IntegersSummary> for Sum {
         fn zero(_cx: &()) -> Self {
             Default::default()
         }

crates/sum_tree/src/tree_map.rs

@@ -26,7 +26,7 @@ impl<K> Default for MapKey<K> {
 #[derive(Clone, Debug)]
 pub struct MapKeyRef<'a, K>(Option<&'a K>);
 
-impl<'a, K> Default for MapKeyRef<'a, K> {
+impl<K> Default for MapKeyRef<'_, K> {
     fn default() -> Self {
         Self(None)
     }