Downloader: Make the Error type public.

hammond-downloader/src/errors.rs

@@ -3,7 +3,7 @@ use reqwest;
 use std::io;
 
 #[derive(Fail, Debug)]
-enum DownloaderError {
+pub enum DownloaderError {
     #[fail(display = "Reqwest error: {}", _0)] RequestError(reqwest::Error),
     #[fail(display = "Data error: {}", _0)] DataError(hammond_data::errors::DatabaseError),
     #[fail(display = "Io error: {}", _0)] IoError(io::Error),

hammond-downloader/src/lib.rs

@@ -1,5 +1,5 @@
 #![recursion_limit = "1024"]
-// #![deny(unused_extern_crates, unused)]
+#![deny(unused_extern_crates, unused)]
 
 #[macro_use]
 extern crate failure;