Better errors

src/action/hash.rs

@@ -18,9 +18,9 @@ impl ActionExec for HashAction {
     fn exec(&self, _config: &Config) -> Result<(), Error> {
         // TODO errors
         let hash = if self.torrent.starts_with("magnet:") {
-            magnet_hash(&self.torrent)
+            magnet_hash(&self.torrent)?
         } else {
-            torrent_hash(&self.torrent)
+            torrent_hash(&self.torrent)?
         };
         println!("{}", hash);
         Ok(())