From 8dd9493cf291b31ebe2e6c3aa18f259156fd9d89 Mon Sep 17 00:00:00 2001
From: "Felix S. Klock II" <pnkfelix@pnkfx.org>
Date: Wed, 12 Oct 2016 23:39:08 +0200
Subject: [PATCH] placate diagnostic checking tests by fixing sample code in
 E0569.

---
 src/librustc_typeck/diagnostics.rs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/librustc_typeck/diagnostics.rs b/src/librustc_typeck/diagnostics.rs
index bdd33cb56e0b..781991e7bb6a 100644
--- a/src/librustc_typeck/diagnostics.rs
+++ b/src/librustc_typeck/diagnostics.rs
@@ -2824,6 +2824,9 @@ If an impl has a generic parameter with the `#[may_dangle]` attribute, then
 that impl must be declared as an `unsafe impl. For example:
 
 ```compile_fail,E0569
+#![feature(generic_param_attrs)]
+#![feature(dropck_eyepatch)]
+
 struct Foo<X>(X);
 impl<#[may_dangle] X> Drop for Foo {
     fn drop(&mut self) { }