Fixing warnings

ethcore/src/evm/interpreter.rs

@@ -17,7 +17,6 @@
 ///! Rust VM implementation
 
 use common::*;
-use trace::VMTracer;
 use super::instructions as instructions;
 use super::instructions::{Instruction, get_info};
 use std::marker::Copy;

ethcore/src/executive.rs

@@ -81,14 +81,14 @@ impl<'a> Executive<'a> {
 	}
 
 	/// Creates `Externalities` from `Executive`.
-	pub fn as_externalities<'_, T, V>(
-		&'_ mut self,
+	pub fn as_externalities<'any, T, V>(
+		&'any mut self,
 		origin_info: OriginInfo,
-		substate: &'_ mut Substate,
-		output: OutputPolicy<'_, '_>,
-		tracer: &'_ mut T,
-		vm_tracer: &'_ mut V
-	) -> Externalities<'_, T, V> where T: Tracer, V: VMTracer {
+		substate: &'any mut Substate,
+		output: OutputPolicy<'any, 'any>,
+		tracer: &'any mut T,
+		vm_tracer: &'any mut V
+	) -> Externalities<'any, T, V> where T: Tracer, V: VMTracer {
 		Externalities::new(self.state, self.info, self.engine, self.vm_factory, self.depth, origin_info, substate, output, tracer, vm_tracer)
 	}
 

ethcore/src/trace/executive_tracer.rs

@@ -117,7 +117,7 @@ impl VMTracer for ExecutiveVMTracer {
 		self.data.operations.push(VMOperation {
 			pc: pc,
 			instruction: instruction,
-			gas_cost: gas_cost.clone(),	
+			gas_cost: gas_cost.clone(),
 			executed: None,
 		});
 		true
@@ -133,10 +133,10 @@ impl VMTracer for ExecutiveVMTracer {
 		self.data.operations.last_mut().expect("trace_executed is always called after a trace_prepare_execute").executed = Some(ex);
 	}
 
-	fn prepare_subtrace(&self, code: &Bytes) -> Self {
+	fn prepare_subtrace(&self, code: &[u8]) -> Self {
 		ExecutiveVMTracer { data: VMTrace {
 			parent_step: self.data.operations.len(),
-			code: code.clone(),
+			code: code.to_vec(),
 			operations: vec![],
 			subs: vec![],
 		}}

ethcore/src/trace/mod.rs

@@ -98,7 +98,7 @@ pub trait VMTracer: Send {
 	fn trace_executed(&mut self, _gas_used: U256, _stack_push: &[U256], _mem_diff: Option<(usize, &[u8])>, _store_diff: Option<(U256, U256)>) {}
 
 	/// Spawn subtracer which will be used to trace deeper levels of execution.
-	fn prepare_subtrace(&self, code: &Bytes) -> Self where Self: Sized;
+	fn prepare_subtrace(&self, code: &[u8]) -> Self where Self: Sized;
 
 	/// Spawn subtracer which will be used to trace deeper levels of execution.
 	fn done_subtrace(&mut self, sub: Self) where Self: Sized;

ethcore/src/trace/noop_tracer.rs

@@ -75,7 +75,7 @@ impl VMTracer for NoopVMTracer {
 	fn trace_executed(&mut self, _gas_used: U256, _stack_push: &[U256], _mem_diff: Option<(usize, &[u8])>, _store_diff: Option<(U256, U256)>) {}
 
 	/// Spawn subtracer which will be used to trace deeper levels of execution.
-	fn prepare_subtrace(&self, _code: &Bytes) -> Self { NoopVMTracer }
+	fn prepare_subtrace(&self, _code: &[u8]) -> Self { NoopVMTracer }
 
 	/// Spawn subtracer which will be used to trace deeper levels of execution.
 	fn done_subtrace(&mut self, _sub: Self) {}