From cd6cf76e5a890dec01f3616c7df4f4b86a4ea1a5 Mon Sep 17 00:00:00 2001
From: Bastien Orivel
Date: Sun, 28 Jan 2018 22:46:03 +0100
Subject: Don't emit a warning when a struct with no validator derives Validate

---
 validator_derive/src/lib.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/validator_derive/src/lib.rs b/validator_derive/src/lib.rs
index 1678883..6700c2a 100644
--- a/validator_derive/src/lib.rs
+++ b/validator_derive/src/lib.rs
@@ -74,6 +74,7 @@ fn impl_validate(ast: &syn::MacroInput) -> quote::Tokens {
     let (impl_generics, ty_generics, where_clause) = ast.generics.split_for_impl();
     let impl_ast = quote!(
         impl #impl_generics Validate for #ident #ty_generics #where_clause {
+            #[allow(unused_mut)]
             fn validate(&self) -> ::std::result::Result<(), ::validator::ValidationErrors> {
                 let mut errors = ::validator::ValidationErrors::new();
 
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