Fix the order of the errors

Author: moatom

compiler/rustc_trait_selection/src/error_reporting/traits/mod.rs

@@ -163,17 +163,26 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> {
         // Ensure `T: Sized` and `T: WF` obligations come last. This lets us display diagnostics
         // with more relevant type information and hide redundant E0282 errors.
         errors.sort_by_key(|e| match e.obligation.predicate.kind().skip_binder() {
-            ty::PredicateKind::Subtype(_) => {
-                (-1, e.obligation.cause.span.len(), -(e.obligation.cause.span.index() as i32))
+            ty::PredicateKind::Subtype(_)
+                if e.obligation.cause.span.macro_backtrace().next().is_some_and(
+                    |trace| match trace.kind {
+                        ExpnKind::Macro(_, name) => {
+                            name.as_str().rsplit("::").next() == Some("format_args_nl")
+                        }
+                        _ => false,
+                    },
+                ) =>
+            {
+                (-1, e.obligation.cause.span.index())
             }
             ty::PredicateKind::Clause(ty::ClauseKind::Trait(pred))
                 if self.tcx.is_lang_item(pred.def_id(), LangItem::Sized) =>
             {
-                (1, 0, 0)
+                (1, 0)
             }
-            ty::PredicateKind::Coerce(_) => (2, 0, 0),
-            ty::PredicateKind::Clause(ty::ClauseKind::WellFormed(_)) => (3, 0, 0),
-            _ => (0, 0, 0),
+            ty::PredicateKind::Coerce(_) => (2, 0),
+            ty::PredicateKind::Clause(ty::ClauseKind::WellFormed(_)) => (3, 0),
+            _ => (0, 0),
         });
 
         for (index, error) in errors.iter().enumerate() {