1 files changed, 36 insertions, 0 deletions
diff --git a/tests/ui/trait-bounds/impl-derived-implicit-sized-bound.rs b/tests/ui/trait-bounds/impl-derived-implicit-sized-bound.rs
new file mode 100644
index 00000000000..28da41a0ca5
--- /dev/null
+++ b/tests/ui/trait-bounds/impl-derived-implicit-sized-bound.rs
@@ -0,0 +1,36 @@
+struct Victim<'a, T: Perpetrator + ?Sized>
+where
+  Self: Sized
+{
+  value: u8,
+  perp: &'a T,
+}
+
+trait VictimTrait {
+  type Ret;
+  fn get(self) -> Self::Ret;
+}
+
+// Actual fix is here
+impl<'a, T: Perpetrator /*+ ?Sized*/> VictimTrait for Victim<'a, T> {
+  type Ret = u8;
+  fn get(self) -> Self::Ret {
+    self.value
+  }
+}
+
+trait Perpetrator {
+  fn getter<'a>(&'a self) -> Victim<'a, Self> {
+    Victim {
+      value: 0,
+      perp: self,
+    }
+  }
+
+  fn trigger(&self) {
+    self.getter().get();
+    //~^ ERROR the method `get` exists for struct `Victim<'_, Self>`, but its trait bounds were not satisfied
+  }
+}
+
+fn main() {}