From 99a108c03654cd9d2df21223eb55a5dfd6552cb8 Mon Sep 17 00:00:00 2001
From: Bastian Köcher <git@kchr.de>
Date: Thu, 21 Dec 2017 12:03:01 +0100
Subject: Fixes compilation errors and adds proposed improvements

---
 src/libstd/termination.rs | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'src/libstd')

diff --git a/src/libstd/termination.rs b/src/libstd/termination.rs
index a08d3dd2d52..5eeaa542b41 100644
--- a/src/libstd/termination.rs
+++ b/src/libstd/termination.rs
@@ -21,6 +21,8 @@ use libc;
 /// a successful execution. In case of a failure, `libc::EXIT_FAILURE` is returned.
 #[cfg_attr(not(stage0), lang = "termination")]
 #[unstable(feature = "termination_trait", issue = "0")]
+#[rustc_on_unimplemented =
+  "`main` can only return types that implement {Termination}, not `{Self}`"]
 pub trait Termination {
     /// Is called to get the representation of the value as status code.
     /// This status code is returned to the operating system.
-- 
cgit 1.4.1-3-g733a5