1 files changed, 9 insertions, 0 deletions
diff --git a/tests/ui/dyn-compatibility/avoid-ice-on-warning.rs b/tests/ui/dyn-compatibility/avoid-ice-on-warning.rs
new file mode 100644
index 00000000000..b90d8911d50
--- /dev/null
+++ b/tests/ui/dyn-compatibility/avoid-ice-on-warning.rs
@@ -0,0 +1,9 @@
+//@ revisions: old new
+//@[old] edition:2015
+//@[new] edition:2021
+fn call_this<F>(f: F) : Fn(&str) + call_that {}
+//~^ ERROR return types are denoted using `->`
+//~| ERROR cannot find trait `call_that` in this scope
+//[old]~| WARN trait objects without an explicit `dyn` are deprecated
+//[old]~| WARN this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
+fn main() {}