check all dyn obligations, actually

compiler/rustc_trait_selection/src/traits/select/confirmation.rs

@@ -467,9 +467,6 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
             .instantiate(tcx, trait_predicate.trait_ref.substs)
             .predicates
             .into_iter()
-        {
-            if let ty::PredicateKind::Trait(..) | ty::PredicateKind::Projection(..) =
-                super_trait.kind().skip_binder()
         {
             let normalized_super_trait = normalize_with_depth_to(
                 self,
@@ -485,7 +482,6 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
                 normalized_super_trait,
             ));
         }
-        }
 
         let assoc_types: Vec<_> = tcx
             .associated_items(trait_predicate.def_id())

src/test/ui/traits/object/supertrait-lifetime-bound.nll.stderr

@@ -0,0 +1,11 @@
+error: lifetime may not live long enough
+  --> $DIR/supertrait-lifetime-bound.rs:10:5
+   |
+LL | fn test2<'a>() {
+   |          -- lifetime `'a` defined here
+...
+LL |     test1::<dyn Bar<&'a u32>, _>();
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ requires that `'a` must outlive `'static`
+
+error: aborting due to previous error
+

src/test/ui/traits/object/supertrait-lifetime-bound.rs

@@ -1,16 +1,14 @@
-// check-pass
+trait Foo: 'static { }
 
-use std::any::Any;
+trait Bar<T>: Foo { }
 
-trait A<T>: Any {
-    fn m(&self) {}
-}
+fn test1<T: ?Sized + Bar<S>, S>() { }
 
-impl<S, T: 'static> A<S> for T {}
-
-fn call_obj<'a>() {
-    let obj: &dyn A<&'a ()> = &();
-    obj.m();
+fn test2<'a>() {
+    // Here: the type `dyn Bar<&'a u32>` references `'a`,
+    // and so it does not outlive `'static`.
+    test1::<dyn Bar<&'a u32>, _>();
+    //~^ ERROR the type `(dyn Bar<&'a u32> + 'static)` does not fulfill the required lifetime
 }
 
 fn main() { }

src/test/ui/traits/object/supertrait-lifetime-bound.stderr

@@ -0,0 +1,15 @@
+error[E0477]: the type `(dyn Bar<&'a u32> + 'static)` does not fulfill the required lifetime
+  --> $DIR/supertrait-lifetime-bound.rs:10:5
+   |
+LL |     test1::<dyn Bar<&'a u32>, _>();
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+note: type must satisfy the static lifetime as required by this binding
+  --> $DIR/supertrait-lifetime-bound.rs:5:22
+   |
+LL | fn test1<T: ?Sized + Bar<S>, S>() { }
+   |                      ^^^^^^
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0477`.