1 files changed, 21 insertions, 0 deletions
diff --git a/tests/ui/impl-trait/capture-lifetime-not-in-hir.rs b/tests/ui/impl-trait/capture-lifetime-not-in-hir.rs
new file mode 100644
index 000000000..9c067cb69
--- /dev/null
+++ b/tests/ui/impl-trait/capture-lifetime-not-in-hir.rs
@@ -0,0 +1,21 @@
+#![feature(rustc_attrs)]
+#![rustc_variance_of_opaques]
+
+trait Bar<'a> {
+    type Assoc: From<()>;
+}
+
+fn foo<'a, T: Bar<'a>>() -> impl Into<T::Assoc> {
+    //~^ ERROR [o, o]
+    // captures both T and 'a invariantly
+    ()
+}
+
+fn foo2<'a, T: Bar<'a>>() -> impl Into<T::Assoc> + 'a {
+    //~^ ERROR [o, o, o]
+    // captures both T and 'a invariantly, and also duplicates `'a`
+    // i.e. the opaque looks like `impl Into<<T as Bar<'a>>::Assoc> + 'a_duplicated`
+    ()
+}
+
+fn main() {}