1 files changed, 25 insertions, 0 deletions
diff --git a/tests/ui/dyn-compatibility/spurious-dyn-compat-errors-58734.rs b/tests/ui/dyn-compatibility/spurious-dyn-compat-errors-58734.rs
new file mode 100644
index 00000000000..3e9ebb497a2
--- /dev/null
+++ b/tests/ui/dyn-compatibility/spurious-dyn-compat-errors-58734.rs
@@ -0,0 +1,25 @@
+// https://github.com/rust-lang/rust/issues/58734
+trait Trait {
+    fn exists(self) -> ();
+
+    fn dyn_incompatible() -> Self;
+}
+
+impl Trait for () {
+    fn exists(self) -> () {
+    }
+
+    fn dyn_incompatible() -> Self {
+        ()
+    }
+}
+
+fn main() {
+    // dyn-compatible or not, this call is OK
+    Trait::exists(());
+    // no dyn-compatibility error
+    Trait::nonexistent(());
+    //~^ WARN trait objects without an explicit `dyn` are deprecated
+    //~| WARN this is accepted in the current edition
+    //~| ERROR the trait `Trait` is not dyn compatible
+}