Auto merge of #3264 - rust-lang:rustup-2024-01-11, r=saethlin

Automatic Rustup

Author: bors

rust-version

@@ -1 +1 @@
-94807670a6a3834cc9b71b0b803d49d307c9ba5d
+65b323b168daa6c723a8a5b4ddf939f3b12e0329

src/diagnostics.rs

@@ -455,7 +455,7 @@ pub fn report_msg<'tcx>(
     let sess = machine.tcx.sess;
     let level = match diag_level {
         DiagLevel::Error => Level::Error,
-        DiagLevel::Warning => Level::Warning(None),
+        DiagLevel::Warning => Level::Warning,
         DiagLevel::Note => Level::Note,
     };
     let mut err = DiagnosticBuilder::<()>::new(sess.dcx(), level, title);
@@ -499,22 +499,20 @@ pub fn report_msg<'tcx>(
         err.note(if extra_span { "BACKTRACE (of the first span):" } else { "BACKTRACE:" });
     }
 
-    let (mut err, handler) = err.into_diagnostic().unwrap();
-
     // Add backtrace
     for (idx, frame_info) in stacktrace.iter().enumerate() {
         let is_local = machine.is_local(frame_info);
         // No span for non-local frames and the first frame (which is the error site).
         if is_local && idx > 0 {
-            err.eager_subdiagnostic(handler, frame_info.as_note(machine.tcx));
+            err.eager_subdiagnostic(err.dcx, frame_info.as_note(machine.tcx));
         } else {
             let sm = sess.source_map();
             let span = sm.span_to_embeddable_string(frame_info.span);
             err.note(format!("{frame_info} at {span}"));
         }
     }
 
-    handler.emit_diagnostic(err);
+    err.emit();
 }
 
 impl<'mir, 'tcx> MiriMachine<'mir, 'tcx> {