fix all warnings

ethcore/src/client/client.rs

@@ -16,5 +16,5 @@
 
 //! Blockchain database client.
 
-#![allow(dead_code, unused_assignments, unused_variables)] // codegen issues
+#![allow(dead_code, unused_assignments, unused_variables, missing_docs)] // codegen issues
 include!(concat!(env!("OUT_DIR"), "/client.ipc.rs"));

ethcore/src/types/block_import_error.rs

@@ -22,6 +22,7 @@ use std::collections::VecDeque;
 use error::{ImportError, BlockError, Error};
 use std::convert::From;
 
+/// Error dedicated to import block function
 #[derive(Binary, Debug)]
 pub enum BlockImportError {
 	/// Import error

ethcore/src/types/trace_filter.rs

@@ -20,7 +20,7 @@ use std::mem;
 use ipc::binary::{BinaryConvertError, BinaryConvertable};
 use std::collections::VecDeque;
 use std::ops::Range;
-use util::{Address, H256};
+use util::{Address};
 use types::ids::BlockID;
 
 /// Easy to use trace filter.

ethcore/src/types/transaction_import_result.rs

@@ -14,7 +14,8 @@
 // You should have received a copy of the GNU General Public License
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 
-use std::mem;
+//! Transaction import result related types
+
 use ipc::binary::BinaryConvertError;
 use std::collections::VecDeque;