diff --git a/src/hardhat.rs b/src/hardhat.rs
index b63681be..52063870 100644
--- a/src/hardhat.rs
+++ b/src/hardhat.rs
@@ -239,7 +239,7 @@ mod tests {
             .hardhat_mine(None, None)
             .await
             .expect("hardhat_mine");
-        assert_eq!(result, true);
+        assert!(result);
 
         let current_block = node
             .get_block_by_number(zksync_types::api::BlockNumber::Latest, false)
@@ -253,7 +253,7 @@ mod tests {
             .hardhat_mine(None, None)
             .await
             .expect("hardhat_mine");
-        assert_eq!(result, true);
+        assert!(result);
 
         let current_block = node
             .get_block_by_number(zksync_types::api::BlockNumber::Latest, false)
@@ -284,7 +284,7 @@ mod tests {
             .hardhat_mine(Some(U64::from(num_blocks)), Some(U64::from(interval)))
             .await
             .expect("hardhat_mine");
-        assert_eq!(result, true);
+        assert!(result);
 
         for i in 0..num_blocks {
             let current_block = node
diff --git a/src/logging_middleware.rs b/src/logging_middleware.rs
index a33f357b..b91f6122 100644
--- a/src/logging_middleware.rs
+++ b/src/logging_middleware.rs
@@ -1,6 +1,6 @@
 use colored::Colorize;
-use futures::{future::Either, FutureExt};
 use futures::Future;
+use futures::{future::Either, FutureExt};
 use itertools::Itertools;
 use jsonrpc_core::{
     middleware, Call, FutureResponse, Metadata, Middleware, Params, Request, Response,
@@ -86,8 +86,8 @@ impl Middleware<Meta> for LoggingMiddleware {
         };
 
         Either::Left(Box::pin(next(request, meta).map(move |res| {
-			log::trace!("API response => {:?}", res);
-			res
-		})))
+            log::trace!("API response => {:?}", res);
+            res
+        })))
     }
 }
diff --git a/src/testing.rs b/src/testing.rs
index 24f6dc8c..7fd03227 100644
--- a/src/testing.rs
+++ b/src/testing.rs
@@ -124,7 +124,6 @@ impl MockServer {
                     "sealFields": [],
                     "uncles": [],
                     "transactions": (0..block_config.transaction_count)
-                        .into_iter()
                         .map(|index| {
                             TransactionResponseBuilder::new()
                                 .set_hash(H256::repeat_byte(index))
@@ -381,7 +380,7 @@ pub fn apply_tx<T: ForkSource + std::fmt::Debug>(node: &InMemoryNode<T>, tx_hash
     )
     .unwrap();
     tx.set_input(vec![], tx_hash);
-    node.apply_txs(vec![tx.into()]).expect("failed applying tx");
+    node.apply_txs(vec![tx]).expect("failed applying tx");
 
     produced_block_hash
 }
@@ -463,7 +462,7 @@ mod test {
             .as_object()
             .and_then(|o| o.get("result").unwrap().as_array())
             .map(|o| {
-                o.into_iter()
+                o.iter()
                     .map(|o| o.get("common_data").unwrap().as_object().unwrap())
                     .map(|o| o.get("L1").unwrap().as_object().unwrap())
                     .map(|entry| entry.get("serialId").unwrap().as_u64().unwrap())