From 7783b4c0b60506f1e1aef0ef4e4711d6fc5893e7 Mon Sep 17 00:00:00 2001
From: Guanqun Lu <guanqun.lu@gmail.com>
Date: Sun, 14 May 2017 13:19:06 +0800
Subject: [PATCH] add more specific reason why it fails to parse

---
 src/config.rs | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/config.rs b/src/config.rs
index 441f86f48cbf..632170e68124 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -261,8 +261,9 @@ pub fn from_toml(toml: &str) -> Result<Config, String> {
                 match parsed.try_into() {
                     Ok(parsed_config) =>
                         Ok(Config::default().fill_from_parsed_config(parsed_config)),
-                    Err(_) => {
-                        err.push_str("Error: Decoding config file failed. ");
+                    Err(e) => {
+                        err.push_str("Error: Decoding config file failed:\n");
+                        err.push_str(format!("{}\n", e).as_str());
                         err.push_str("Please check your config file.\n");
                         Err(err)
                     }