diff --git a/src/test/ui/closures/closure-expected-type/expect-region-supply-region.polonius.stderr b/src/test/ui/closures/closure-expected-type/expect-region-supply-region.polonius.stderr
new file mode 100644
index 00000000000..2a7461fb469
--- /dev/null
+++ b/src/test/ui/closures/closure-expected-type/expect-region-supply-region.polonius.stderr
@@ -0,0 +1,56 @@
+error[E0521]: borrowed data escapes outside of closure
+  --> $DIR/expect-region-supply-region.rs:18:9
+   |
+LL |     let mut f: Option<&u32> = None;
+   |         ----- `f` is declared here, outside of the closure body
+LL |     closure_expecting_bound(|x| {
+   |                              - `x` is a reference that is only valid in the closure body
+LL |         f = Some(x);
+   |         ^^^^^^^^^^^ `x` escapes the closure body here
+
+error[E0521]: borrowed data escapes outside of closure
+  --> $DIR/expect-region-supply-region.rs:28:9
+   |
+LL |     let mut f: Option<&u32> = None;
+   |         ----- `f` is declared here, outside of the closure body
+LL |     closure_expecting_bound(|x: &u32| {
+   |                              - `x` is a reference that is only valid in the closure body
+LL |         f = Some(x);
+   |         ^^^^^^^^^^^ `x` escapes the closure body here
+
+error: lifetime may not live long enough
+  --> $DIR/expect-region-supply-region.rs:37:30
+   |
+LL | fn expect_bound_supply_named<'x>() {
+   |                              -- lifetime `'x` defined here
+...
+LL |     closure_expecting_bound(|x: &'x u32| {
+   |                              ^  - let's call the lifetime of this reference `'1`
+   |                              |
+   |                              requires that `'1` must outlive `'x`
+
+error[E0521]: borrowed data escapes outside of closure
+  --> $DIR/expect-region-supply-region.rs:42:9
+   |
+LL |     let mut f: Option<&u32> = None;
+   |         ----- `f` is declared here, outside of the closure body
+...
+LL |     closure_expecting_bound(|x: &'x u32| {
+   |                              - `x` is a reference that is only valid in the closure body
+...
+LL |         f = Some(x);
+   |         ^^^^^^^^^^^ `x` escapes the closure body here
+
+error: lifetime may not live long enough
+  --> $DIR/expect-region-supply-region.rs:37:30
+   |
+LL | fn expect_bound_supply_named<'x>() {
+   |                              -- lifetime `'x` defined here
+...
+LL |     closure_expecting_bound(|x: &'x u32| {
+   |                              ^ requires that `'x` must outlive `'static`
+   |
+   = help: consider replacing `'x` with `'static`
+
+error: aborting due to 5 previous errors
+
diff --git a/src/test/ui/impl-trait/multiple-lifetimes/error-handling.polonius.stderr b/src/test/ui/impl-trait/multiple-lifetimes/error-handling.polonius.stderr
new file mode 100644
index 00000000000..72e8fa33d7b
--- /dev/null
+++ b/src/test/ui/impl-trait/multiple-lifetimes/error-handling.polonius.stderr
@@ -0,0 +1,12 @@
+error: lifetime may not live long enough
+  --> $DIR/error-handling.rs:13:56
+   |
+LL | fn foo<'a, 'b, 'c>(x: &'static i32, mut y: &'a i32) -> E<'b, 'c> {
+   |        --  -- lifetime `'b` defined here               ^^^^^^^^^ opaque type requires that `'a` must outlive `'b`
+   |        |
+   |        lifetime `'a` defined here
+   |
+   = help: consider adding the following bound: `'a: 'b`
+
+error: aborting due to previous error
+
diff --git a/src/test/ui/nll/user-annotations/closure-substs.polonius.stderr b/src/test/ui/nll/user-annotations/closure-substs.polonius.stderr
new file mode 100644
index 00000000000..d5bcdf64441
--- /dev/null
+++ b/src/test/ui/nll/user-annotations/closure-substs.polonius.stderr
@@ -0,0 +1,60 @@
+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 {
+   |         -        ------------ return type of closure is &'2 i32
+   |         |
+   |         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` is 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
+