diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index fea31503..fc56edb9 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -14,7 +14,7 @@ jobs:
         run: |
           cd rust
           cargo fmt -- --check
-          RUSTFLAGS="-A unused" cargo clippy
+          RUSTFLAGS="-A unused" cargo clippy -- -Dwarnings
           cargo clippy --tests
       - name: compile and test
         run: |
diff --git a/rust/structures/mergeable_heap.rs b/rust/structures/mergeable_heap.rs
index 576a1d81..306c815b 100644
--- a/rust/structures/mergeable_heap.rs
+++ b/rust/structures/mergeable_heap.rs
@@ -59,7 +59,7 @@ mod tests {
     #[case(&mut [1, 1])]
     #[case(&mut [3, 1, 2])]
     fn basic_test(#[case] seq: &mut [u32]) {
-        let heap_sorted_values = sort_with_heap(&seq);
+        let heap_sorted_values = sort_with_heap(seq);
         seq.sort();
         assert_eq!(heap_sorted_values, seq);
     }
@@ -92,7 +92,7 @@ mod tests {
     }
 
     fn sort_with_heap(seq: &[u32]) -> Vec<u32> {
-        let mut heap = seq.iter().fold(None, |h, v| Heap::insert(h, v));
+        let mut heap = seq.iter().fold(None, Heap::insert);
         let mut heap_sorted_values = Vec::new();
         while heap.is_some() {
             let (updated_heap, min_value) = Heap::remove_min(heap);
diff --git a/rust/structures/treap.rs b/rust/structures/treap.rs
index 80e66276..d5eb710d 100644
--- a/rust/structures/treap.rs
+++ b/rust/structures/treap.rs
@@ -21,7 +21,7 @@ impl<K: Copy + PartialOrd, V: Copy + PartialEq + AddAssign + Ord + Default> Trea
             value,
             mx: value,
             add: V::default(),
-            prio: rand::thread_rng().gen_range(0..1000_000_000),
+            prio: rand::thread_rng().gen_range(0..1_000_000_000),
             size: 1,
             left: None,
             right: None,
@@ -59,6 +59,7 @@ impl<K: Copy + PartialOrd, V: Copy + PartialEq + AddAssign + Ord + Default> Trea
         node.as_ref().map_or(value, |t| max(t.mx, value))
     }
 
+    #[allow(clippy::type_complexity)]
     pub fn split(
         root: Option<Box<Treap<K, V>>>,
         min_right: K,
@@ -66,6 +67,7 @@ impl<K: Copy + PartialOrd, V: Copy + PartialEq + AddAssign + Ord + Default> Trea
         Self::inner_split(root, min_right, |a, b| a >= b)
     }
 
+    #[allow(clippy::type_complexity)]
     pub fn strict_split(
         root: Option<Box<Treap<K, V>>>,
         min_right: K,
@@ -73,6 +75,7 @@ impl<K: Copy + PartialOrd, V: Copy + PartialEq + AddAssign + Ord + Default> Trea
         Self::inner_split(root, min_right, |a, b| a > b)
     }
 
+    #[allow(clippy::type_complexity)]
     fn inner_split<F: Fn(K, K) -> bool>(
         root: Option<Box<Treap<K, V>>>,
         min_right: K,
@@ -139,6 +142,7 @@ impl<K: Copy + PartialOrd, V: Copy + PartialEq + AddAssign + Ord + Default> Trea
     ) -> Option<Box<Treap<K, V>>> {
         let (l1, r1) = Self::strict_split(root, rr);
         let (l2, mut r2) = Self::split(l1, ll);
+        #[allow(clippy::option_map_unit_fn)]
         r2.as_mut().map(|t| t.apply(delta));
         Self::merge(Self::merge(l2, r2), r1)
     }
@@ -167,7 +171,6 @@ mod tests {
         treap = Treap::modify(treap, 1, 2, 100);
 
         let (t, q2) = Treap::query(treap, 1, 2);
-        treap = t;
         assert_eq!(q2, 120);
     }
 }