diff --git a/rust-version b/rust-version
index bd571f788acb..f2c3c6ff5462 100644
--- a/rust-version
+++ b/rust-version
@@ -1 +1 @@
-36f1f04f18b89ba4a999bcfd6584663fd6fc1c5d
+2b8fbe6b0b6db7960828bd2c9a50e52c9a5d0aef
diff --git a/tests/compile-fail/storage_dead_dangling.rs b/tests/compile-fail/storage_dead_dangling.rs
index ad8e05537e1a..4d91498eac16 100644
--- a/tests/compile-fail/storage_dead_dangling.rs
+++ b/tests/compile-fail/storage_dead_dangling.rs
@@ -18,5 +18,7 @@ fn main() {
         fill(&mut x);
         _y = x;
     }
+    // Now we use a pointer to `x` which is no longer in scope, and thus dead (even though the
+    // `main` stack frame still exists).
     evil();
 }