diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index bf76c6a78..50c144b52 100644
--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -1,4 +1,4 @@
 [toolchain]
-channel = "stable-2023-08-03"
+channel = "nightly-2023-08-03"
 components = ["rustfmt", "clippy"]
 profile = "minimal"
diff --git a/src/storage/mod.rs b/src/storage/mod.rs
index d33b963cf..6ffb5dce2 100644
--- a/src/storage/mod.rs
+++ b/src/storage/mod.rs
@@ -16,20 +16,19 @@ pub trait DBObject: Serialize + for<'de> Deserialize<'de> + Copy {
     fn db_key(suffix: Vec<u8>) -> Vec<u8>;
 
     /// Asynchronous methods for getting and setting the object in storage
-    async fn get<S: Storage>(storage: &S, suffix: &Vec<u8>) -> Option<Self>
+    async fn get<S: Storage>(storage: &S, suffix: &[u8]) -> Option<Self>
     where
         Self: Sized,
     {
-        let key = Self::db_key(suffix.clone());
-        if let Some(data) = storage.get_value(key).await {
-            Some(from_slice(&data).expect("Failed to deserialize data"))
-        } else {
-            None
-        }
+        let key = Self::db_key(suffix.to_vec());
+        storage
+            .get_value(key)
+            .await
+            .map(|data| from_slice(&data).expect("Failed to deserialize data"))
     }
 
-    async fn set<S: Storage>(&self, storage: &S, suffix: &Vec<u8>) {
-        let key = Self::db_key(suffix.clone());
+    async fn set<S: Storage>(&self, storage: &S, suffix: &[u8]) {
+        let key = Self::db_key(suffix.to_vec());
         let data = to_vec(self).expect("Failed to serialize data");
         storage.set_value(key, data).await;
     }
@@ -39,7 +38,7 @@ pub trait DBObject: Serialize + for<'de> Deserialize<'de> + Copy {
 pub struct FactCheckingContext<S: Storage> {
     storage: S,
     hash_func: HashFunctionType,
-    n_workers: Option<u32>,
+    _n_workers: Option<u32>,
 }
 
 pub trait Fact: DBObject {
diff --git a/src/storage/starknet.rs b/src/storage/starknet.rs
index 8059fe818..9997a5570 100644
--- a/src/storage/starknet.rs
+++ b/src/storage/starknet.rs
@@ -70,7 +70,7 @@ impl CommitmentInfo {
         let actual_updated_tree = previous_tree
             .update(ffc, modifications, Some(&mut commitment_facts))
             .await;
-        let actual_updated_root: FieldElement = actual_updated_tree.root.into();
+        let actual_updated_root: FieldElement = actual_updated_tree.root;
 
         if actual_updated_root != expected_updated_root {
             return Err(CommitmentInfoError::InconsistentTreeRoots(
diff --git a/src/utils/commitment_tree/binary_fact_tree.rs b/src/utils/commitment_tree/binary_fact_tree.rs
index ec02c532a..81ca3514d 100644
--- a/src/utils/commitment_tree/binary_fact_tree.rs
+++ b/src/utils/commitment_tree/binary_fact_tree.rs
@@ -45,7 +45,7 @@ where
         index: FieldElement,
     ) -> Result<L, FactTreeError> {
         let leaves = self.get_leaves(ffc, vec![index], None).await;
-        if leaves.keys().ne(vec![index].iter()) {
+        if leaves.keys().ne([index].iter()) {
             return Err(FactTreeError::UnexpectedResult(index));
         }
 
diff --git a/src/utils/commitment_tree/patricia_tree.rs b/src/utils/commitment_tree/patricia_tree.rs
index 0ba872679..d0e211256 100644
--- a/src/utils/commitment_tree/patricia_tree.rs
+++ b/src/utils/commitment_tree/patricia_tree.rs
@@ -18,41 +18,41 @@ pub struct PatriciaTree {
 }
 
 impl<S: Storage, L: LeafFact> BinaryFactTree<S, L> for PatriciaTree {
-    async fn empty_tree(&self, ffc: FactCheckingContext<S>, height: usize, leaft_fact: L) {
+    async fn empty_tree(&self, _ffc: FactCheckingContext<S>, _height: usize, _leaft_fact: L) {
         todo!()
     }
 
     async fn get_leaves(
         &self,
-        ffc: FactCheckingContext<S>,
-        indices: Vec<FieldElement>,
-        facts: Option<BinaryFactDict>,
+        _ffc: FactCheckingContext<S>,
+        _indices: Vec<FieldElement>,
+        _facts: Option<BinaryFactDict>,
     ) -> HashMap<FieldElement, L> {
         todo!()
     }
 
     async fn _get_leaves(
         &self,
-        ffc: FactCheckingContext<S>,
-        indices: Vec<FieldElement>,
-        facts: Option<BinaryFactDict>,
+        _ffc: FactCheckingContext<S>,
+        _indices: Vec<FieldElement>,
+        _facts: Option<BinaryFactDict>,
     ) -> HashMap<FieldElement, L> {
         todo!()
     }
 
     async fn update(
         &self,
-        ffc: FactCheckingContext<S>,
-        modifications: HashMap<FieldElement, L>,
-        facts: Option<&mut BinaryFactDict>,
+        _ffc: FactCheckingContext<S>,
+        _modifications: HashMap<FieldElement, L>,
+        _facts: Option<&mut BinaryFactDict>,
     ) -> Self {
         todo!()
     }
 
     async fn get_leaf(
         &self,
-        ffc: FactCheckingContext<S>,
-        index: FieldElement,
+        _ffc: FactCheckingContext<S>,
+        _index: FieldElement,
     ) -> Result<L, FactTreeError> {
         todo!()
     }