beta fallout.

Author: cjgillot

compiler/rustc_resolve/src/late/lifetimes.rs

@@ -2360,12 +2360,13 @@ impl<'a, 'tcx> LifetimeContext<'a, 'tcx> {
                 Scope::Binder {
                     where_bound_origin: Some(hir::PredicateOrigin::ImplTrait), ..
                 } => {
-                    let mut err = self.tcx.sess.struct_span_err(
-                        lifetime_ref.span,
-                        "`impl Trait` can only mention lifetimes bound at the fn or impl level",
-                    );
-                    err.span_note(self.tcx.def_span(region_def_id), "lifetime declared here");
-                    err.emit();
+                    self.tcx
+                        .sess
+                        .struct_span_err(
+                            lifetime_ref.span,
+                            "`impl Trait` can only mention lifetimes bound at the fn or impl level",
+                        )
+                        .emit();
                     return;
                 }
                 Scope::Root => break,

src/test/ui/impl-trait/universal_wrong_hrtb.stderr

@@ -3,12 +3,6 @@ error: `impl Trait` can only mention lifetimes bound at the fn or impl level
    |
 LL | fn test_argument_position(x: impl for<'a> Trait<'a, Assoc = impl Copy + 'a>) {}
    |                                                                         ^^
-   |
-note: lifetime declared here
-  --> $DIR/universal_wrong_hrtb.rs:5:39
-   |
-LL | fn test_argument_position(x: impl for<'a> Trait<'a, Assoc = impl Copy + 'a>) {}
-   |                                       ^^
 
 error: aborting due to previous error