1 files changed, 25 insertions, 0 deletions
diff --git a/src/test/ui/impl-trait/unactionable_diagnostic.rs b/src/test/ui/impl-trait/unactionable_diagnostic.rs
new file mode 100644
index 000000000..bce35cbdd
--- /dev/null
+++ b/src/test/ui/impl-trait/unactionable_diagnostic.rs
@@ -0,0 +1,25 @@
+// run-rustfix
+
+pub trait Trait {}
+
+pub struct Foo;
+
+impl Trait for Foo {}
+
+fn foo<'x, P>(
+    _post: P,
+    x: &'x Foo,
+) -> &'x impl Trait {
+    x
+}
+
+pub fn bar<'t, T>(
+    //~^ HELP: consider adding an explicit lifetime bound...
+    post: T,
+    x: &'t Foo,
+) -> &'t impl Trait {
+    foo(post, x)
+    //~^ ERROR: the parameter type `T` may not live long enough
+}
+
+fn main() {}