4 files changed, 17 insertions, 6 deletions
diff --git a/compiler/rustc_errors/src/annotate_snippet_emitter_writer.rs b/compiler/rustc_errors/src/annotate_snippet_emitter_writer.rs
index 577baec21f0..2253007ce30 100644
--- a/compiler/rustc_errors/src/annotate_snippet_emitter_writer.rs
+++ b/compiler/rustc_errors/src/annotate_snippet_emitter_writer.rs
@@ -145,8 +145,9 @@ impl AnnotateSnippetEmitterWriter {
                 title: Some(Annotation {
                     label: Some(&message),
                     id: code.as_ref().map(|c| match c {
-                        DiagnosticId::Error(val)
-                        | DiagnosticId::Lint { name: val, has_future_breakage: _ } => val.as_str(),
+                        DiagnosticId::Error(val) | DiagnosticId::Lint { name: val, .. } => {
+                            val.as_str()
+                        }
                     }),
                     annotation_type: annotation_type_for_level(*level),
                 }),
diff --git a/compiler/rustc_errors/src/diagnostic.rs b/compiler/rustc_errors/src/diagnostic.rs
index 14ccced2c6a..45661ac1562 100644
--- a/compiler/rustc_errors/src/diagnostic.rs
+++ b/compiler/rustc_errors/src/diagnostic.rs
@@ -29,7 +29,7 @@ pub struct Diagnostic {
 #[derive(Clone, Debug, PartialEq, Eq, Hash, Encodable, Decodable)]
 pub enum DiagnosticId {
     Error(String),
-    Lint { name: String, has_future_breakage: bool },
+    Lint { name: String, has_future_breakage: bool, is_force_warn: bool },
 }
 
 /// A "sub"-diagnostic attached to a parent diagnostic.
@@ -109,6 +109,13 @@ impl Diagnostic {
         }
     }
 
+    pub fn is_force_warn(&self) -> bool {
+        match self.code {
+            Some(DiagnosticId::Lint { is_force_warn, .. }) => is_force_warn,
+            _ => false,
+        }
+    }
+
     /// Cancel the diagnostic (a structured diagnostic must either be emitted or
     /// canceled or it will panic when dropped).
     pub fn cancel(&mut self) {
diff --git a/compiler/rustc_errors/src/json.rs b/compiler/rustc_errors/src/json.rs
index 72395bd31ec..485e7564587 100644
--- a/compiler/rustc_errors/src/json.rs
+++ b/compiler/rustc_errors/src/json.rs
@@ -559,7 +559,7 @@ impl DiagnosticCode {
         s.map(|s| {
             let s = match s {
                 DiagnosticId::Error(s) => s,
-                DiagnosticId::Lint { name, has_future_breakage: _ } => name,
+                DiagnosticId::Lint { name, .. } => name,
             };
             let je_result =
                 je.registry.as_ref().map(|registry| registry.try_find_description(&s)).unwrap();
diff --git a/compiler/rustc_errors/src/lib.rs b/compiler/rustc_errors/src/lib.rs
index 979f2d3b300..c5399282a1e 100644
--- a/compiler/rustc_errors/src/lib.rs
+++ b/compiler/rustc_errors/src/lib.rs
@@ -802,7 +802,10 @@ impl HandlerInner {
             self.future_breakage_diagnostics.push(diagnostic.clone());
         }
 
-        if diagnostic.level == Warning && !self.flags.can_emit_warnings {
+        if diagnostic.level == Warning
+            && !self.flags.can_emit_warnings
+            && !diagnostic.is_force_warn()
+        {
             if diagnostic.has_future_breakage() {
                 (*TRACK_DIAGNOSTICS)(diagnostic);
             }
@@ -874,7 +877,7 @@ impl HandlerInner {
 
         match (errors.len(), warnings.len()) {
             (0, 0) => return,
-            (0, _) => self.emit_diagnostic(&Diagnostic::new(Level::Warning, &warnings)),
+            (0, _) => self.emitter.emit_diagnostic(&Diagnostic::new(Level::Warning, &warnings)),
             (_, 0) => {
                 let _ = self.fatal(&errors);
             }