fix

Author: AnderEnder

src/error_chain.rs

@@ -371,6 +371,7 @@ macro_rules! impl_error_chain_processed {
                 $(
                     $(#[$meta_foreign_links])*
                     $foreign_link_variant(err: $foreign_link_error_path) {
+			#[allow(deprecated)]
                         description(::std::error::Error::description(err))
                         display("{}", err)
                     }