diff --git a/src/Cargo.lock b/src/Cargo.lock
index 1bbe8ca7575f1..22a546f75d71b 100644
--- a/src/Cargo.lock
+++ b/src/Cargo.lock
@@ -1334,7 +1334,7 @@ dependencies = [
  "lazy_static 0.2.8 (registry+/~https://github.com/rust-lang/crates.io-index)",
  "log 0.3.8 (registry+/~https://github.com/rust-lang/crates.io-index)",
  "racer 2.0.10 (registry+/~https://github.com/rust-lang/crates.io-index)",
- "rls-analysis 0.6.5 (registry+/~https://github.com/rust-lang/crates.io-index)",
+ "rls-analysis 0.6.7 (registry+/~https://github.com/rust-lang/crates.io-index)",
  "rls-data 0.10.0 (registry+/~https://github.com/rust-lang/crates.io-index)",
  "rls-rustc 0.1.1 (registry+/~https://github.com/rust-lang/crates.io-index)",
  "rls-span 0.4.0 (registry+/~https://github.com/rust-lang/crates.io-index)",
@@ -1348,7 +1348,7 @@ dependencies = [
 
 [[package]]
 name = "rls-analysis"
-version = "0.6.5"
+version = "0.6.7"
 source = "registry+/~https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "derive-new 0.3.0 (registry+/~https://github.com/rust-lang/crates.io-index)",
@@ -2542,7 +2542,7 @@ source = "registry+/~https://github.com/rust-lang/crates.io-index"
 "checksum regex 0.2.2 (registry+/~https://github.com/rust-lang/crates.io-index)" = "1731164734096285ec2a5ec7fea5248ae2f5485b3feeb0115af4fda2183b2d1b"
 "checksum regex-syntax 0.3.9 (registry+/~https://github.com/rust-lang/crates.io-index)" = "f9ec002c35e86791825ed294b50008eea9ddfc8def4420124fbc6b08db834957"
 "checksum regex-syntax 0.4.1 (registry+/~https://github.com/rust-lang/crates.io-index)" = "ad890a5eef7953f55427c50575c680c42841653abd2b028b68cd223d157f62db"
-"checksum rls-analysis 0.6.5 (registry+/~https://github.com/rust-lang/crates.io-index)" = "d2cb40c0371765897ae428b5706bb17135705ad4f6d1b8b6afbaabcf8c9b5cff"
+"checksum rls-analysis 0.6.7 (registry+/~https://github.com/rust-lang/crates.io-index)" = "4302cc8291570d7f817945845d8c01756e833dbc93c0a87d4f6c9a0b0b7992f1"
 "checksum rls-data 0.10.0 (registry+/~https://github.com/rust-lang/crates.io-index)" = "11d339f1888e33e74d8032de0f83c40b2bdaaaf04a8cfc03b32186c3481fb534"
 "checksum rls-rustc 0.1.1 (registry+/~https://github.com/rust-lang/crates.io-index)" = "b21ea952e9bf1569929abf1bb920262cde04b7b1b26d8e0260286302807299d2"
 "checksum rls-span 0.4.0 (registry+/~https://github.com/rust-lang/crates.io-index)" = "5d7c7046dc6a92f2ae02ed302746db4382e75131b9ce20ce967259f6b5867a6a"
diff --git a/src/doc/unstable-book/src/library-features/iterator-for-each.md b/src/doc/unstable-book/src/library-features/iterator-for-each.md
deleted file mode 100644
index ebeb5f6a1de51..0000000000000
--- a/src/doc/unstable-book/src/library-features/iterator-for-each.md
+++ /dev/null
@@ -1,17 +0,0 @@
-# `iterator_for_each`
-
-The tracking issue for this feature is: [#42986]
-
-[#42986]: /~https://github.com/rust-lang/rust/issues/42986
-
-------------------------
-
-To call a closure on each element of an iterator, you can use `for_each`:
-
-```rust
-#![feature(iterator_for_each)]
-
-fn main() {
-    (0..10).for_each(|i| println!("{}", i));
-}
-```
diff --git a/src/libcore/iter/iterator.rs b/src/libcore/iter/iterator.rs
index 7c009114afefb..edafd0ce2c227 100644
--- a/src/libcore/iter/iterator.rs
+++ b/src/libcore/iter/iterator.rs
@@ -498,8 +498,6 @@ pub trait Iterator {
     /// Basic usage:
     ///
     /// ```
-    /// #![feature(iterator_for_each)]
-    ///
     /// use std::sync::mpsc::channel;
     ///
     /// let (tx, rx) = channel();
@@ -514,15 +512,13 @@ pub trait Iterator {
     /// might be preferable to keep a functional style with longer iterators:
     ///
     /// ```
-    /// #![feature(iterator_for_each)]
-    ///
     /// (0..5).flat_map(|x| x * 100 .. x * 110)
     ///       .enumerate()
     ///       .filter(|&(i, x)| (i + x) % 3 == 0)
     ///       .for_each(|(i, x)| println!("{}:{}", i, x));
     /// ```
     #[inline]
-    #[unstable(feature = "iterator_for_each", issue = "42986")]
+    #[stable(feature = "iterator_for_each", since = "1.22.0")]
     fn for_each<F>(self, mut f: F) where
         Self: Sized, F: FnMut(Self::Item),
     {
diff --git a/src/tools/rls b/src/tools/rls
index 8dd70945fb049..7221e38023c41 160000
--- a/src/tools/rls
+++ b/src/tools/rls
@@ -1 +1 @@
-Subproject commit 8dd70945fb049df3f9dc7685cdc58d94e05e8ffc
+Subproject commit 7221e38023c41ff2532ebbf54a7da296fd488b50