1 files changed, 61 insertions, 0 deletions
diff --git a/tests/ui/nll/user-annotations/closure-substs.polonius.stderr b/tests/ui/nll/user-annotations/closure-substs.polonius.stderr
new file mode 100644
index 00000000000..af159a6cd1b
--- /dev/null
+++ b/tests/ui/nll/user-annotations/closure-substs.polonius.stderr
@@ -0,0 +1,61 @@
+error: lifetime may not live long enough
+  --> $DIR/closure-substs.rs:8:16
+   |
+LL | fn foo<'a>() {
+   |        -- lifetime `'a` defined here
+...
+LL |         return x;
+   |                ^ returning this value requires that `'a` must outlive `'static`
+   |
+   = help: consider replacing `'a` with `'static`
+
+error: lifetime may not live long enough
+  --> $DIR/closure-substs.rs:15:16
+   |
+LL |     |x: &i32| -> &'static i32 {
+   |         - let's call the lifetime of this reference `'1`
+LL |         return x;
+   |                ^ returning this value requires that `'1` must outlive `'static`
+
+error: lifetime may not live long enough
+  --> $DIR/closure-substs.rs:15:16
+   |
+LL |     |x: &i32| -> &'static i32 {
+   |         -        - let's call the lifetime of this reference `'2`
+   |         |
+   |         let's call the lifetime of this reference `'1`
+LL |         return x;
+   |                ^ returning this value requires that `'1` must outlive `'2`
+
+error: lifetime may not live long enough
+  --> $DIR/closure-substs.rs:22:9
+   |
+LL | fn bar<'a>() {
+   |        -- lifetime `'a` defined here
+...
+LL |         b(x);
+   |         ^^^^ argument requires that `'a` must outlive `'static`
+   |
+   = help: consider replacing `'a` with `'static`
+
+error[E0521]: borrowed data escapes outside of closure
+  --> $DIR/closure-substs.rs:29:9
+   |
+LL |     |x: &i32, b: fn(&'static i32)| {
+   |      - `x` is a reference that is only valid in the closure body
+LL |         b(x);
+   |         ^^^^ `x` escapes the closure body here
+
+error[E0521]: borrowed data escapes outside of closure
+  --> $DIR/closure-substs.rs:29:9
+   |
+LL |     |x: &i32, b: fn(&'static i32)| {
+   |      -        - `b` declared here, outside of the closure body
+   |      |
+   |      `x` is a reference that is only valid in the closure body
+LL |         b(x);
+   |         ^^^^ `x` escapes the closure body here
+
+error: aborting due to 6 previous errors
+
+For more information about this error, try `rustc --explain E0521`.