Typo + some clippy stuff (unnecessary clone/to_string/refs) + fmt (#1437)

cumulus/test/service/src/cli.rs

@@ -327,10 +327,8 @@ impl SubstrateCli for RelayChainCli {
 	}
 
 	fn load_spec(&self, id: &str) -> std::result::Result<Box<dyn sc_service::ChainSpec>, String> {
-		<polkadot_cli::Cli as SubstrateCli>::from_iter(
-			[RelayChainCli::executable_name().to_string()].iter(),
-		)
-		.load_spec(id)
+		<polkadot_cli::Cli as SubstrateCli>::from_iter([RelayChainCli::executable_name()].iter())
+			.load_spec(id)
 	}
 
 	fn native_runtime_version(chain_spec: &Box<dyn ChainSpec>) -> &'static RuntimeVersion {

cumulus/test/service/src/lib.rs

@@ -140,7 +140,7 @@ pub fn new_partial(
 	);
 
 	let (client, backend, keystore_container, task_manager) =
-		sc_service::new_full_parts::<Block, RuntimeApi, _>(&config, None, executor)?;
+		sc_service::new_full_parts::<Block, RuntimeApi, _>(config, None, executor)?;
 	let client = Arc::new(client);
 
 	let registry = config.prometheus_registry();
@@ -158,7 +158,7 @@ pub fn new_partial(
 		client.clone(),
 		|_, _| async { Ok(sp_timestamp::InherentDataProvider::from_system_time()) },
 		&task_manager.spawn_essential_handle(),
-		registry.clone(),
+		registry,
 	)?;
 
 	let params = PartialComponents {
@@ -200,7 +200,7 @@ async fn build_relay_chain_interface(
 		relay_chain_full_node.client.clone(),
 		relay_chain_full_node.backend.clone(),
 		Arc::new(Mutex::new(Box::new(relay_chain_full_node.network.clone()))),
-		relay_chain_full_node.overseer_handle.clone(),
+		relay_chain_full_node.overseer_handle,
 	)) as Arc<_>)
 }
 
@@ -621,7 +621,7 @@ pub fn node_config(
 	spec.set_storage(storage);
 
 	let mut network_config = NetworkConfiguration::new(
-		format!("{} (parachain)", key_seed.to_string()),
+		format!("{} (parachain)", key_seed),
 		"network/test/0.1",
 		Default::default(),
 		None,
@@ -774,10 +774,10 @@ pub fn construct_extrinsic(
 	);
 	let signature = raw_payload.using_encoded(|e| caller.sign(e));
 	runtime::UncheckedExtrinsic::new_signed(
-		function.clone(),
+		function,
 		caller.public().into(),
-		runtime::Signature::Sr25519(signature.clone()),
-		extra.clone(),
+		runtime::Signature::Sr25519(signature),
+		extra,
 	)
 }
 

cumulus/test/service/src/main.rs

@@ -77,9 +77,7 @@ fn main() -> Result<(), sc_cli::Error> {
 			let parachain_id = ParaId::from(cli.parachain_id);
 			let polkadot_cli = RelayChainCli::new(
 				&config,
-				[RelayChainCli::executable_name().to_string()]
-					.iter()
-					.chain(cli.relaychain_args.iter()),
+				[RelayChainCli::executable_name()].iter().chain(cli.relaychain_args.iter()),
 			);
 
 			let parachain_account =