fix clippy things (paritytech#1200)

bridges/bin/rialto/node/src/overseer.rs

@@ -113,7 +113,7 @@ where
 
 /// Obtain a prepared `OverseerBuilder`, that is initialized
 /// with all default values.
-pub fn prepared_overseer_builder<'a, Spawner, RuntimeClient>(
+pub fn prepared_overseer_builder<Spawner, RuntimeClient>(
 	OverseerGenArgs {
 		leaves,
 		keystore,
@@ -134,7 +134,7 @@ pub fn prepared_overseer_builder<'a, Spawner, RuntimeClient>(
 		candidate_validation_config,
 		chain_selection_config,
 		dispute_coordinator_config,
-	}: OverseerGenArgs<'a, Spawner, RuntimeClient>,
+	}: OverseerGenArgs<'_, Spawner, RuntimeClient>,
 ) -> Result<
 	OverseerBuilder<
 		Spawner,
@@ -236,7 +236,7 @@ where
 			approval_voting_config,
 			parachains_db.clone(),
 			keystore.clone(),
-			Box::new(network_service.clone()),
+			Box::new(network_service),
 			Metrics::register(registry)?,
 		))
 		.gossip_support(GossipSupportSubsystem::new(
@@ -251,9 +251,9 @@ where
 		))
 		.dispute_participation(DisputeParticipationSubsystem::new())
 		.dispute_distribution(DisputeDistributionSubsystem::new(
-			keystore.clone(),
+			keystore,
 			dispute_req_receiver,
-			authority_discovery_service.clone(),
+			authority_discovery_service,
 			Metrics::register(registry)?,
 		))
 		.chain_selection(ChainSelectionSubsystem::new(chain_selection_config, parachains_db))
@@ -278,10 +278,10 @@ where
 /// would do.
 pub trait OverseerGen {
 	/// Overwrite the full generation of the overseer, including the subsystems.
-	fn generate<'a, Spawner, RuntimeClient>(
+	fn generate<Spawner, RuntimeClient>(
 		&self,
 		connector: OverseerConnector,
-		args: OverseerGenArgs<'a, Spawner, RuntimeClient>,
+		args: OverseerGenArgs<'_, Spawner, RuntimeClient>,
 	) -> Result<(Overseer<Spawner, Arc<RuntimeClient>>, OverseerHandle), Error>
 	where
 		RuntimeClient: 'static + ProvideRuntimeApi<Block> + HeaderBackend<Block> + AuxStore,
@@ -302,10 +302,10 @@ use polkadot_overseer::KNOWN_LEAVES_CACHE_SIZE;
 pub struct RealOverseerGen;
 
 impl OverseerGen for RealOverseerGen {
-	fn generate<'a, Spawner, RuntimeClient>(
+	fn generate<Spawner, RuntimeClient>(
 		&self,
 		connector: OverseerConnector,
-		args: OverseerGenArgs<'a, Spawner, RuntimeClient>,
+		args: OverseerGenArgs<'_, Spawner, RuntimeClient>,
 	) -> Result<(Overseer<Spawner, Arc<RuntimeClient>>, OverseerHandle), Error>
 	where
 		RuntimeClient: 'static + ProvideRuntimeApi<Block> + HeaderBackend<Block> + AuxStore,

bridges/bin/rialto/node/src/service.rs

@@ -613,7 +613,7 @@ where
 					statement_req_receiver,
 				},
 			)?;
-		let handle = Handle::new(overseer_handle.clone());
+		let handle = Handle::new(overseer_handle);
 
 		{
 			let handle = handle.clone();

bridges/relays/bin-ethereum/src/ethereum_deploy_contract.rs

@@ -118,7 +118,7 @@ async fn prepare_initial_header(
 			let initial_header = sub_client.header_by_number(Zero::zero()).await;
 			initial_header
 				.map(|header| (HeaderId(Zero::zero(), header.hash()), header.encode()))
-				.map_err(|error| Error::ReadGenesisHeader(error))
+				.map_err(Error::ReadGenesisHeader)
 		},
 	}
 }
@@ -134,7 +134,7 @@ async fn prepare_initial_authorities_set(
 		None => sub_client.grandpa_authorities_set(sub_initial_header_hash).await,
 	};
 
-	initial_authorities_set.map_err(|error| Error::ReadAuthorities(error))
+	initial_authorities_set.map_err(Error::ReadAuthorities)
 }
 
 /// Deploy bridge contract to Ethereum chain.
@@ -160,5 +160,5 @@ async fn deploy_bridge_contract(
 			),
 		)
 		.await
-		.map_err(|error| Error::DeployContract(error))
+		.map_err(Error::DeployContract)
 }

bridges/relays/bin-substrate/src/cli/relay_headers_and_messages.rs

@@ -512,10 +512,10 @@ impl RelayHeadersAndMessages {
 				let left_to_right_messages = left_to_right_messages(MessagesRelayParams {
 					source_client: left_client.clone(),
 					source_sign: left_sign.clone(),
-					source_transactions_mortality: left_transactions_mortality.clone(),
+					source_transactions_mortality: left_transactions_mortality,
 					target_client: right_client.clone(),
 					target_sign: right_sign.clone(),
-					target_transactions_mortality: right_transactions_mortality.clone(),
+					target_transactions_mortality: right_transactions_mortality,
 					source_to_target_headers_relay: Some(left_to_right_on_demand_headers.clone()),
 					target_to_source_headers_relay: Some(right_to_left_on_demand_headers.clone()),
 					lane_id: lane,
@@ -531,10 +531,10 @@ impl RelayHeadersAndMessages {
 				let right_to_left_messages = right_to_left_messages(MessagesRelayParams {
 					source_client: right_client.clone(),
 					source_sign: right_sign.clone(),
-					source_transactions_mortality: right_transactions_mortality.clone(),
+					source_transactions_mortality: right_transactions_mortality,
 					target_client: left_client.clone(),
 					target_sign: left_sign.clone(),
-					target_transactions_mortality: left_transactions_mortality.clone(),
+					target_transactions_mortality: left_transactions_mortality,
 					source_to_target_headers_relay: Some(right_to_left_on_demand_headers.clone()),
 					target_to_source_headers_relay: Some(left_to_right_on_demand_headers.clone()),
 					lane_id: lane,

bridges/relays/bin-substrate/src/cli/resubmit_transactions.rs

@@ -552,7 +552,7 @@ mod tests {
 		// when we resubmit tx for the second time, 1/9 of queue is skipped
 		context = context.notice_resubmitted_transaction(Hash::from([3; 32]));
 		assert_eq!(
-			select_transaction_from_queue(queued_transactions.clone(), &context),
+			select_transaction_from_queue(queued_transactions, &context),
 			Some(Bytes(vec![1])),
 		);
 	}

bridges/relays/exchange/src/exchange_loop.rs

@@ -99,8 +99,8 @@ pub async fn run<P: TransactionProofPipeline>(
 
 	relay_utils::relay_loop(source_client, target_client)
 		.with_metrics(Some(metrics_prefix::<P>()), metrics_params)
-		.loop_metric(|registry, prefix| ExchangeLoopMetrics::new(registry, prefix))?
-		.standalone_metric(|registry, prefix| GlobalMetrics::new(registry, prefix))?
+		.loop_metric(ExchangeLoopMetrics::new)?
+		.standalone_metric(GlobalMetrics::new)?
 		.expose()
 		.await?
 		.run(metrics_prefix::<P>(), move |source_client, target_client, metrics| {

bridges/relays/finality/src/finality_loop.rs

@@ -114,8 +114,8 @@ pub async fn run<P: FinalitySyncPipeline>(
 	let exit_signal = exit_signal.shared();
 	relay_utils::relay_loop(source_client, target_client)
 		.with_metrics(Some(metrics_prefix::<P>()), metrics_params)
-		.loop_metric(|registry, prefix| SyncLoopMetrics::new(registry, prefix))?
-		.standalone_metric(|registry, prefix| GlobalMetrics::new(registry, prefix))?
+		.loop_metric(SyncLoopMetrics::new)?
+		.standalone_metric(GlobalMetrics::new)?
 		.expose()
 		.await?
 		.run(metrics_prefix::<P>(), move |source_client, target_client, metrics| {

bridges/relays/headers/src/sync_loop.rs

@@ -147,8 +147,8 @@ pub async fn run<P: HeadersSyncPipeline, TC: TargetClient<P>>(
 	let exit_signal = exit_signal.shared();
 	relay_utils::relay_loop(source_client, target_client)
 		.with_metrics(Some(metrics_prefix::<P>()), metrics_params)
-		.loop_metric(|registry, prefix| SyncLoopMetrics::new(registry, prefix))?
-		.standalone_metric(|registry, prefix| GlobalMetrics::new(registry, prefix))?
+		.loop_metric(SyncLoopMetrics::new)?
+		.standalone_metric(GlobalMetrics::new)?
 		.expose()
 		.await?
 		.run(metrics_prefix::<P>(), move |source_client, target_client, metrics| {

bridges/relays/messages/src/message_lane_loop.rs

@@ -268,8 +268,8 @@ pub async fn run<P: MessageLane>(
 	relay_utils::relay_loop(source_client, target_client)
 		.reconnect_delay(params.reconnect_delay)
 		.with_metrics(Some(metrics_prefix::<P>(&params.lane)), metrics_params)
-		.loop_metric(|registry, prefix| MessageLaneLoopMetrics::new(registry, prefix))?
-		.standalone_metric(|registry, prefix| GlobalMetrics::new(registry, prefix))?
+		.loop_metric(MessageLaneLoopMetrics::new)?
+		.standalone_metric(GlobalMetrics::new)?
 		.expose()
 		.await?
 		.run(metrics_prefix::<P>(&params.lane), move |source_client, target_client, metrics| {