chore: use Rust 1.65.0 (#16688)

2 files changed, 4 insertions, 8 deletions

diff --git a/cli/tools/coverage/merge.rs b/cli/tools/coverage/merge.rs
index 08a695e1d..63b795f76 100644
--- a/cli/tools/coverage/merge.rs
+++ b/cli/tools/coverage/merge.rs
@@ -126,8 +126,7 @@ pub fn merge_functions(
       trees.push(tree);
     }
   }
-  let merged =
-    RangeTree::normalize(&rta, merge_range_trees(&rta, trees).unwrap());
+  let merged = RangeTree::normalize(merge_range_trees(&rta, trees).unwrap());
   let ranges = merged.to_ranges();
   let is_block_coverage: bool = !(ranges.len() == 1 && ranges[0].count == 0);
 
diff --git a/cli/tools/coverage/range_tree.rs b/cli/tools/coverage/range_tree.rs
index aca8939ee..87ddd8baa 100644
--- a/cli/tools/coverage/range_tree.rs
+++ b/cli/tools/coverage/range_tree.rs
@@ -71,10 +71,7 @@ impl<'rt> RangeTree<'rt> {
     (rta.alloc(left), rta.alloc(right))
   }
 
-  pub fn normalize<'a>(
-    rta: &'a RangeTreeArena<'a>,
-    tree: &'a mut RangeTree<'a>,
-  ) -> &'a mut RangeTree<'a> {
+  pub fn normalize<'a>(tree: &'a mut RangeTree<'a>) -> &'a mut RangeTree<'a> {
     tree.children = {
       let mut children: Vec<&'a mut RangeTree<'a>> = Vec::new();
       let mut chain: Vec<&'a mut RangeTree<'a>> = Vec::new();
@@ -96,7 +93,7 @@ impl<'rt> RangeTree<'rt> {
               head.children.push(sub_child);
             }
           }
-          children.push(RangeTree::normalize(rta, head));
+          children.push(RangeTree::normalize(head));
         }
         chain.push(child)
       }
@@ -110,7 +107,7 @@ impl<'rt> RangeTree<'rt> {
             head.children.push(sub_child);
           }
         }
-        children.push(RangeTree::normalize(rta, head));
+        children.push(RangeTree::normalize(head));
       }
 
       if children.len() == 1