diff --git a/rust-version b/rust-version
index 7abca8ef469..0979a384dd3 100644
--- a/rust-version
+++ b/rust-version
@@ -1 +1 @@
-nightly-2019-03-11
+nightly-2019-03-18
diff --git a/src/lib.rs b/src/lib.rs
index cf6a885c605..ee739a5435a 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,4 +1,4 @@
-#![feature(rustc_private, range_contains)]
+#![feature(rustc_private)]
 
 #![allow(clippy::cast_lossless)]