let num_trait_substs = trait_to_impl_substs.len();
let num_impl_substs = tcx.generics_of(impl_m.container_id(tcx)).params.len();
let ty = tcx.fold_regions(ty, |region, _| {
- let ty::ReFree(_) = region.kind() else { return region; };
+ let (ty::ReFree(_) | ty::ReEarlyBound(_)) = region.kind() else { return region; };
let Some(ty::ReEarlyBound(e)) = map.get(®ion.into()).map(|r| r.expect_region().kind())
else {
tcx
--- /dev/null
+// check-pass
+// edition:2021
+
+#![feature(async_fn_in_trait, return_position_impl_trait_in_trait)]
+#![allow(incomplete_features)]
+
+pub trait Foo {
+ async fn bar<'a: 'a>(&'a mut self);
+}
+
+impl Foo for () {
+ async fn bar<'a: 'a>(&'a mut self) {}
+}
+
+pub trait Foo2 {
+ fn bar<'a: 'a>(&'a mut self) -> impl Sized + 'a;
+}
+
+impl Foo2 for () {
+ fn bar<'a: 'a>(&'a mut self) -> impl Sized + 'a {}
+}
+
+fn main() {}