1 files changed, 20 insertions, 0 deletions
diff --git a/tests/ui/traits/trait-upcasting/type-checking-test-3.rs b/tests/ui/traits/trait-upcasting/type-checking-test-3.rs
new file mode 100644
index 000000000..b2db3a127
--- /dev/null
+++ b/tests/ui/traits/trait-upcasting/type-checking-test-3.rs
@@ -0,0 +1,20 @@
+#![feature(trait_upcasting)]
+
+trait Foo<'a>: Bar<'a> {}
+trait Bar<'a> {}
+
+fn test_correct(x: &dyn Foo<'static>) {
+    let _ = x as &dyn Bar<'static>;
+}
+
+fn test_wrong1<'a>(x: &dyn Foo<'static>, y: &'a u32) {
+    let _ = x as &dyn Bar<'a>; // Error
+                               //~^ ERROR lifetime may not live long enough
+}
+
+fn test_wrong2<'a>(x: &dyn Foo<'a>) {
+    let _ = x as &dyn Bar<'static>; // Error
+                                    //~^ ERROR lifetime may not live long enough
+}
+
+fn main() {}