Chore/more error macros (#2686)

* cleaned up MixProcessingError

* Added Error impl to (hopefully) all error enums in the codebase

* Replaced all occurences of error("{0}") with error(transparent)

* Changelog entry

mixnode/src/node/listener/connection_handler/mod.rs

@@ -58,7 +58,7 @@ impl ConnectionHandler {
         // all processing such, key caching, etc. was done.
         // however, if it was a forward hop, we still need to delay it
         match self.packet_processor.process_received(framed_sphinx_packet) {
-            Err(e) => debug!("We failed to process received sphinx packet - {:?}", e),
+            Err(err) => debug!("We failed to process received sphinx packet - {err}"),
             Ok(res) => match res {
                 MixProcessingResult::ForwardHop(forward_packet, delay) => {
                     self.delay_and_forward_packet(forward_packet, delay)

mixnode/src/node/listener/mod.rs

@@ -27,7 +27,7 @@ impl Listener {
         let listener = match TcpListener::bind(self.address).await {
             Ok(listener) => listener,
             Err(err) => {
-                error!("Failed to bind to {} - {}. Are you sure nothing else is running on the specified port and your user has sufficient permission to bind to the requested address?", self.address, err);
+                error!("Failed to bind to {} - {err}. Are you sure nothing else is running on the specified port and your user has sufficient permission to bind to the requested address?", self.address);
                 process::exit(1);
             }
         };
@@ -40,7 +40,7 @@ impl Listener {
                             let handler = connection_handler.clone();
                             tokio::spawn(handler.handle_connection(socket, remote_addr, self.shutdown.clone()));
                         }
-                        Err(err) => warn!("Failed to accept incoming connection - {:?}", err),
+                        Err(err) => warn!("Failed to accept incoming connection - {err}"),
                     }
                 },
                 _ = self.shutdown.recv() => {