diff --git a/node_core/src/chain_storage/mod.rs b/node_core/src/chain_storage/mod.rs
index 2467a6b..aaeef44 100644
--- a/node_core/src/chain_storage/mod.rs
+++ b/node_core/src/chain_storage/mod.rs
@@ -242,8 +242,7 @@ impl NodeChainStore {
                             );
 
                             info!(
-                                "Snapshot executed at {:?} with results {snapshot_trace:#?}",
-                                block_id
+                                "Snapshot executed at {block_id:?} with results {snapshot_trace:#?}"
                             );
                         }
                     }
diff --git a/sequencer_core/src/lib.rs b/sequencer_core/src/lib.rs
index 16b6ae7..301c74c 100644
--- a/sequencer_core/src/lib.rs
+++ b/sequencer_core/src/lib.rs
@@ -131,23 +131,20 @@ impl SequencerCore {
 
         //Tree checks
         let tx_tree_check = self.store.pub_tx_store.get_tx(*hash).is_some();
-        let nullifier_tree_check = nullifier_created_hashes
-            .iter()
-            .map(|nullifier_hash| {
-                self.store.nullifier_store.contains(&UTXONullifier {
-                    utxo_hash: *nullifier_hash,
-                })
+        let nullifier_tree_check = nullifier_created_hashes.iter().any(|nullifier_hash| {
+            self.store.nullifier_store.contains(&UTXONullifier {
+                utxo_hash: *nullifier_hash,
             })
-            .any(|check| check);
-        let utxo_commitments_check = utxo_commitments_created_hashes
-            .iter()
-            .map(|utxo_commitment_hash| {
-                self.store
-                    .utxo_commitments_store
-                    .get_tx(*utxo_commitment_hash)
-                    .is_some()
-            })
-            .any(|check| check);
+        });
+        let utxo_commitments_check =
+            utxo_commitments_created_hashes
+                .iter()
+                .any(|utxo_commitment_hash| {
+                    self.store
+                        .utxo_commitments_store
+                        .get_tx(*utxo_commitment_hash)
+                        .is_some()
+                });
 
         if tx_tree_check {
             return Err(TransactionMalformationErrorKind::TxHashAlreadyPresentInTree { tx: *hash });