fix(lint): fix clippy lints (#864)

Author: Troshchk

tycho-indexer/src/extractor/protocol_extractor.rs

@@ -619,7 +619,7 @@ where
             .await;
         let (unknown_tokens, known_tokens) = new_token_addresses
             .into_iter()
-            .zip(is_token_known.into_iter())
+            .zip(is_token_known)
             .partition::<Vec<_>, _>(|(_, known)| !*known);
         let known_tokens = known_tokens
             .into_iter()
@@ -1727,17 +1727,17 @@ impl ExtractorGateway for ExtractorPgGateway {
                 tx_update
                     .balance_changes
                     .clone()
-                    .into_iter()
-                    .flat_map(|(_, tokens_balances)| tokens_balances.into_values()),
+                    .into_values()
+                    .flat_map(|tokens_balances| tokens_balances.into_values()),
             );
 
             // Map account balance changes
             account_balance_changes.extend(
                 tx_update
                     .account_balance_changes
                     .clone()
-                    .into_iter()
-                    .flat_map(|(_, tokens_balances)| tokens_balances.into_values()),
+                    .into_values()
+                    .flat_map(|tokens_balances| tokens_balances.into_values()),
             );
 
             // Map new entrypoints

tycho-storage/src/postgres/contract.rs

@@ -514,8 +514,8 @@ impl PostgresGateway {
             .collect();
         #[allow(clippy::mutable_key_type)]
         let accounts: HashSet<_> = slots
-            .iter()
-            .flat_map(|(_, contract_slots)| contract_slots.keys())
+            .values()
+            .flat_map(|contract_slots| contract_slots.keys())
             .collect();
         let account_ids: HashMap<Bytes, i64> = schema::account::table
             .filter(schema::account::address.eq_any(accounts))

tycho-storage/src/postgres/entry_point.rs

@@ -53,8 +53,8 @@ impl PostgresGateway {
         .collect::<HashMap<_, _>>();
 
         let new_entry_points = new_data
-            .iter()
-            .flat_map(|(_, ep)| {
+            .values()
+            .flat_map(|ep| {
                 ep.iter()
                     .map(|ep| NewEntryPoint {
                         external_id: ep.external_id.clone(),
@@ -77,8 +77,8 @@ impl PostgresGateway {
         // Fetch entry points by their external_ids, we can't use .returning() on the insert above
         // because it doesn't return the ids on conflicts.
         let input_external_ids: Vec<EntryPointId> = new_data
-            .iter()
-            .flat_map(|(_, ep)| {
+            .values()
+            .flat_map(|ep| {
                 ep.iter()
                     .map(|ep| ep.external_id.clone())
             })