1 files changed, 55 insertions, 0 deletions
diff --git a/src/test/ui/impl-trait/static-return-lifetime-infered.stderr b/src/test/ui/impl-trait/static-return-lifetime-infered.stderr
new file mode 100644
index 000000000..b86815231
--- /dev/null
+++ b/src/test/ui/impl-trait/static-return-lifetime-infered.stderr
@@ -0,0 +1,55 @@
+error[E0700]: hidden type for `impl Iterator<Item = u32>` captures lifetime that does not appear in bounds
+  --> $DIR/static-return-lifetime-infered.rs:7:9
+   |
+LL |     fn iter_values_anon(&self) -> impl Iterator<Item=u32> {
+   |                         ----- hidden type `Map<std::slice::Iter<'_, (u32, u32)>, [closure@$DIR/static-return-lifetime-infered.rs:7:27: 7:30]>` captures the anonymous lifetime defined here
+LL |         self.x.iter().map(|a| a.0)
+   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+help: to declare that the `impl Trait` captures `'_`, you can add an explicit `'_` lifetime bound
+   |
+LL |     fn iter_values_anon(&self) -> impl Iterator<Item=u32> + '_ {
+   |                                                           ++++
+
+error[E0700]: hidden type for `impl Iterator<Item = u32>` captures lifetime that does not appear in bounds
+  --> $DIR/static-return-lifetime-infered.rs:7:9
+   |
+LL |     fn iter_values_anon(&self) -> impl Iterator<Item=u32> {
+   |                         ----- hidden type `Map<std::slice::Iter<'_, (u32, u32)>, [closure@$DIR/static-return-lifetime-infered.rs:7:27: 7:30]>` captures the anonymous lifetime defined here
+LL |         self.x.iter().map(|a| a.0)
+   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+help: to declare that the `impl Trait` captures `'_`, you can add an explicit `'_` lifetime bound
+   |
+LL |     fn iter_values_anon(&self) -> impl Iterator<Item=u32> + '_ {
+   |                                                           ++++
+
+error[E0700]: hidden type for `impl Iterator<Item = u32>` captures lifetime that does not appear in bounds
+  --> $DIR/static-return-lifetime-infered.rs:12:9
+   |
+LL |     fn iter_values<'a>(&'a self) -> impl Iterator<Item=u32> {
+   |                    -- hidden type `Map<std::slice::Iter<'a, (u32, u32)>, [closure@$DIR/static-return-lifetime-infered.rs:12:27: 12:30]>` captures the lifetime `'a` as defined here
+LL |         self.x.iter().map(|a| a.0)
+   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+help: to declare that the `impl Trait` captures `'a`, you can add an explicit `'a` lifetime bound
+   |
+LL |     fn iter_values<'a>(&'a self) -> impl Iterator<Item=u32> + 'a {
+   |                                                             ++++
+
+error[E0700]: hidden type for `impl Iterator<Item = u32>` captures lifetime that does not appear in bounds
+  --> $DIR/static-return-lifetime-infered.rs:12:9
+   |
+LL |     fn iter_values<'a>(&'a self) -> impl Iterator<Item=u32> {
+   |                    -- hidden type `Map<std::slice::Iter<'a, (u32, u32)>, [closure@$DIR/static-return-lifetime-infered.rs:12:27: 12:30]>` captures the lifetime `'a` as defined here
+LL |         self.x.iter().map(|a| a.0)
+   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+help: to declare that the `impl Trait` captures `'a`, you can add an explicit `'a` lifetime bound
+   |
+LL |     fn iter_values<'a>(&'a self) -> impl Iterator<Item=u32> + 'a {
+   |                                                             ++++
+
+error: aborting due to 4 previous errors
+
+For more information about this error, try `rustc --explain E0700`.