rustc.patch

diff --git a/src/librustc/lib.rs b/src/librustc/lib.rs
index 2216103636..4fce2a4311 100644
--- a/src/librustc/lib.rs
+++ b/src/librustc/lib.rs
@@ -21,6 +21,7 @@
        html_favicon_url = "https://doc.rust-lang.org/favicon.ico",
        html_root_url = "https://doc.rust-lang.org/nightly/")]
 #![deny(warnings)]
+#![allow(stable_features)]
 
 #![feature(associated_consts)]
 #![feature(box_patterns)]
diff --git a/src/librustc_driver/lib.rs b/src/librustc_driver/lib.rs
index c5f89e861f..1234099382 100644
--- a/src/librustc_driver/lib.rs
+++ b/src/librustc_driver/lib.rs
@@ -21,6 +21,7 @@
       html_favicon_url = "https://doc.rust-lang.org/favicon.ico",
       html_root_url = "https://doc.rust-lang.org/nightly/")]
 #![deny(warnings)]
+#![allow(stable_features)]
 
 #![feature(box_syntax)]
 #![feature(libc)]
diff --git a/src/librustc_typeck/lib.rs b/src/librustc_typeck/lib.rs
index 06cb9f948c..98834e1cc8 100644
--- a/src/librustc_typeck/lib.rs
+++ b/src/librustc_typeck/lib.rs
@@ -70,6 +70,7 @@ This API is completely unstable and subject to change.
       html_favicon_url = "https://doc.rust-lang.org/favicon.ico",
       html_root_url = "https://doc.rust-lang.org/nightly/")]
 #![deny(warnings)]
+#![allow(stable_features)]
 
 #![allow(non_camel_case_types)]