From 28c779c843316e180c411302863da7dc8606f8e9 Mon Sep 17 00:00:00 2001
From: Milo Turner <iitalics@gmail.com>
Date: Sat, 7 Mar 2020 20:47:43 -0500
Subject: [PATCH] backtrace

---
 hptp-recv/src/main.rs | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/hptp-recv/src/main.rs b/hptp-recv/src/main.rs
index a0b8feb..8bed5ce 100644
--- a/hptp-recv/src/main.rs
+++ b/hptp-recv/src/main.rs
@@ -1,3 +1,4 @@
+#![feature(backtrace)]
 extern crate hptp;
 extern crate tokio;
 #[macro_use]
@@ -9,8 +10,12 @@ use tokio::net::UdpSocket;
 
 #[derive(Error, Debug)]
 enum Error {
-    #[error("io error: {0}")]
-    Io(#[from] tokio::io::Error),
+    #[error("io error: {source}")]
+    Io {
+        #[from]
+        source: tokio::io::Error,
+        backtrace: std::backtrace::Backtrace,
+    },
     #[error("no UDP port available for listening")]
     NoPortAvail,
 }
@@ -23,7 +28,11 @@ fn entry() -> Result<(), Error> {
 
 fn main() {
     if let Err(e) = entry() {
-        println!("ERROR: {}", e);
+        use std::error::Error;
+        println!("Error: {}", e);
+        for bt in e.backtrace() {
+            println!("{}", bt);
+        }
     }
 }