Got rid of compiler warnings

mixnode/src/node/packet_forwarding.rs

@@ -11,12 +11,12 @@ pub(crate) struct PacketForwarder<'a> {
     conn_rx: mpsc::UnboundedReceiver<(SocketAddr, Vec<u8>)>,
 }
 
-impl<'a: 'static> PacketForwarder<'a> {
+impl PacketForwarder<'static> {
     pub(crate) async fn new(
         initial_endpoints: Vec<SocketAddr>,
         initial_reconnection_backoff: Duration,
         maximum_reconnection_backoff: Duration,
-    ) -> PacketForwarder<'a> {
+    ) -> PacketForwarder<'static> {
         let tcp_client_config = multi_tcp_client::Config::new(
             initial_endpoints,
             initial_reconnection_backoff,

mixnode/src/node/packet_processing.rs

@@ -8,7 +8,6 @@ use sphinx::{ProcessedPacket, SphinxPacket};
 use std::net::SocketAddr;
 use std::ops::Deref;
 use std::sync::Arc;
-use std::time::Duration;
 
 #[derive(Debug)]
 pub enum MixProcessingError {
@@ -20,6 +19,7 @@ pub enum MixProcessingError {
 
 pub enum MixProcessingResult {
     ForwardHop(SocketAddr, Vec<u8>),
+    #[allow(dead_code)]
     LoopMessage,
 }