diff --git a/ethcore/src/engines/mod.rs b/ethcore/src/engines/mod.rs
index 3f1a131cf..cb13c984a 100644
--- a/ethcore/src/engines/mod.rs
+++ b/ethcore/src/engines/mod.rs
@@ -473,7 +473,7 @@ pub mod common {
 
 	/// Trace rewards on closing block
 	pub fn bestow_block_reward<E: Engine + ?Sized>(block: &mut ExecutedBlock, engine: &E) -> Result<(), Error> {
-		let fields = block.fields_mut();		
+		let fields = block.fields_mut();
 		// Bestow block reward
 		let reward = engine.params().block_reward;
 		let res = fields.state.add_balance(fields.header.author(), &reward, CleanupMode::NoEmpty)
@@ -482,9 +482,9 @@ pub mod common {
 
 		let block_author = fields.header.author().clone();
 		fields.traces.as_mut().map(|mut traces| {
-  			let mut tracer = ExecutiveTracer::default();			
+  			let mut tracer = ExecutiveTracer::default();
   			tracer.trace_reward(block_author, engine.params().block_reward, RewardType::Block);
-  			traces.push(tracer.traces())
+  			traces.push(tracer.drain())
 		});
 
 		// Commit state so that we can actually figure out the state root.
diff --git a/ethcore/src/engines/null_engine.rs b/ethcore/src/engines/null_engine.rs
index 5610894af..a52342c59 100644
--- a/ethcore/src/engines/null_engine.rs
+++ b/ethcore/src/engines/null_engine.rs
@@ -78,7 +78,7 @@ impl Engine for NullEngine {
 
 		/// Block reward
 		let tracing_enabled = block.tracing_enabled();
-		let fields = block.fields_mut();		
+		let fields = block.fields_mut();
 		let mut tracer = ExecutiveTracer::default();
 
 		let result_block_reward = U256::from(1000000000);
@@ -104,12 +104,12 @@ impl Engine for NullEngine {
 			)?;
 			if tracing_enabled {
 				tracer.trace_reward(uncle_author, result_uncle_reward, RewardType::Uncle);
-			}			
+			}
 		}
 
 		fields.state.commit()?;
 		if tracing_enabled {
-			fields.traces.as_mut().map(|mut traces| traces.push(tracer.traces()));
+			fields.traces.as_mut().map(|mut traces| traces.push(tracer.drain()));
 		}
 		Ok(())
 	}
diff --git a/ethcore/src/ethereum/ethash.rs b/ethcore/src/ethereum/ethash.rs
index 2008caccf..ef997f5a8 100644
--- a/ethcore/src/ethereum/ethash.rs
+++ b/ethcore/src/ethereum/ethash.rs
@@ -338,7 +338,7 @@ impl Engine for Arc<Ethash> {
 		// Commit state so that we can actually figure out the state root.
 		fields.state.commit()?;
 		if tracing_enabled {
-			fields.traces.as_mut().map(|mut traces| traces.push(tracer.traces()));
+			fields.traces.as_mut().map(|mut traces| traces.push(tracer.drain()));
 		}
 		Ok(())
 	}
diff --git a/ethcore/src/trace/types/trace.rs b/ethcore/src/trace/types/trace.rs
index ccbc89e25..01c5c4b43 100644
--- a/ethcore/src/trace/types/trace.rs
+++ b/ethcore/src/trace/types/trace.rs
@@ -219,28 +219,6 @@ impl Suicide {
 	}
 }
 
-impl Encodable for Suicide {
-	fn rlp_append(&self, s: &mut RlpStream) {
-		s.begin_list(3);
-		s.append(&self.address);
-		s.append(&self.refund_address);
-		s.append(&self.balance);
-	}
-}
-
-impl Decodable for Suicide {
-	fn decode(rlp: &UntrustedRlp) -> Result<Self, DecoderError> {
-		let res = Suicide {
-			address: rlp.val_at(0)?,
-			refund_address: rlp.val_at(1)?,
-			balance: rlp.val_at(2)?,
-		};
-
-		Ok(res)
-	}
-}
-
-
 /// Description of an action that we trace; will be either a call or a create.
 #[derive(Debug, Clone, PartialEq)]
 #[cfg_attr(feature = "ipc", binary)]