Fix misc compile warnings (#11258)

ethcore/builtin/src/lib.rs

@@ -359,30 +359,39 @@ impl Implementation for EthereumBuiltin {
 }
 
 #[derive(Debug)]
+/// The identity builtin
 pub struct Identity;
 
 #[derive(Debug)]
+/// The EC Recover builtin
 pub struct EcRecover;
 
 #[derive(Debug)]
+/// The Sha256 builtin
 pub struct Sha256;
 
 #[derive(Debug)]
+/// The Ripemd160 builtin
 pub struct Ripemd160;
 
 #[derive(Debug)]
+/// The Modexp builtin
 pub struct Modexp;
 
 #[derive(Debug)]
+/// The Bn128Add builtin
 pub struct Bn128Add;
 
 #[derive(Debug)]
+/// The Bn128Mul builtin
 pub struct Bn128Mul;
 
 #[derive(Debug)]
+/// The Bn128Pairing builtin
 pub struct Bn128Pairing;
 
 #[derive(Debug)]
+/// The Blake2F builtin
 pub struct Blake2F;
 
 impl Implementation for Identity {

ethcore/machine/src/tx_filter.rs

@@ -53,7 +53,7 @@ pub struct TransactionFilter {
 	contract_address: Address,
 	transition_block: BlockNumber,
 	permission_cache: Mutex<LruCache<(H256, Address), u32>>,
-	contract_version_cache: Mutex<LruCache<(H256), Option<U256>>>
+	contract_version_cache: Mutex<LruCache<H256, Option<U256>>>
 }
 
 impl TransactionFilter {

ethcore/src/client/client.rs

@@ -1207,7 +1207,7 @@ impl Client {
 			gas: U256::from(50_000_000),
 			gas_price: U256::default(),
 			value: U256::default(),
-			data: data,
+			data,
 		}.fake_sign(from)
 	}