--- a/rust/src/config.rs	Sun Sep 22 22:06:46 2019 +0800
+++ b/rust/src/config.rs	Wed Oct 16 22:33:06 2019 +0800
@@ -43,7 +43,6 @@
             })
         })?;
         c.merge(config::Environment::with_prefix("TEMPLOG")).unwrap();
-        println!("c is {:?}", c);
-        Ok(c.try_into().unwrap())
+        c.try_into().or_else(|e| Err(TemplogError::new(&format!("Problem loading config {}: {}", conf_file, e))))
     }
 }