1 files changed, 45 insertions, 0 deletions
diff --git a/src/test/ui/nll/closure-requirements/escape-upvar-ref.stderr b/src/test/ui/nll/closure-requirements/escape-upvar-ref.stderr
new file mode 100644
index 000000000..bc7546421
--- /dev/null
+++ b/src/test/ui/nll/closure-requirements/escape-upvar-ref.stderr
@@ -0,0 +1,45 @@
+note: external requirements
+  --> $DIR/escape-upvar-ref.rs:23:27
+   |
+LL |         let mut closure = || p = &y;
+   |                           ^^
+   |
+   = note: defining type: test::{closure#0} with closure substs [
+               i16,
+               extern "rust-call" fn(()),
+               (&'_#1r mut &'_#2r i32, &'_#3r i32),
+           ]
+   = note: number of external vids: 4
+   = note: where '_#3r: '_#2r
+
+note: no external requirements
+  --> $DIR/escape-upvar-ref.rs:17:1
+   |
+LL | / fn test() {
+LL | |     let x = 44;
+LL | |     let mut p = &x;
+LL | |
+...  |
+LL | |     deref(p);
+LL | | }
+   | |_^
+   |
+   = note: defining type: test
+
+error[E0597]: `y` does not live long enough
+  --> $DIR/escape-upvar-ref.rs:23:35
+   |
+LL |         let mut closure = || p = &y;
+   |                           --      ^ borrowed value does not live long enough
+   |                           |
+   |                           value captured here
+...
+LL |     }
+   |     - `y` dropped here while still borrowed
+LL |
+LL |     deref(p);
+   |           - borrow later used here
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0597`.