1 files changed, 28 insertions, 0 deletions
diff --git a/compiler/rustc_metadata/src/errors.rs b/compiler/rustc_metadata/src/errors.rs
index 7c387b9a9..6f7e6e09c 100644
--- a/compiler/rustc_metadata/src/errors.rs
+++ b/compiler/rustc_metadata/src/errors.rs
@@ -344,6 +344,16 @@ pub struct NoMultipleGlobalAlloc {
 }
 
 #[derive(Diagnostic)]
+#[diag(metadata_no_multiple_alloc_error_handler)]
+pub struct NoMultipleAllocErrorHandler {
+    #[primary_span]
+    #[label]
+    pub span2: Span,
+    #[label(metadata_prev_alloc_error_handler)]
+    pub span1: Span,
+}
+
+#[derive(Diagnostic)]
 #[diag(metadata_conflicting_global_alloc)]
 pub struct ConflictingGlobalAlloc {
     pub crate_name: Symbol,
@@ -351,10 +361,25 @@ pub struct ConflictingGlobalAlloc {
 }
 
 #[derive(Diagnostic)]
+#[diag(metadata_conflicting_alloc_error_handler)]
+pub struct ConflictingAllocErrorHandler {
+    pub crate_name: Symbol,
+    pub other_crate_name: Symbol,
+}
+
+#[derive(Diagnostic)]
 #[diag(metadata_global_alloc_required)]
 pub struct GlobalAllocRequired;
 
 #[derive(Diagnostic)]
+#[diag(metadata_alloc_func_required)]
+pub struct AllocFuncRequired;
+
+#[derive(Diagnostic)]
+#[diag(metadata_missing_alloc_error_handler)]
+pub struct MissingAllocErrorHandler;
+
+#[derive(Diagnostic)]
 #[diag(metadata_no_transitive_needs_dep)]
 pub struct NoTransitiveNeedsDep<'a> {
     pub crate_name: Symbol,
@@ -578,6 +603,7 @@ pub struct InvalidMetadataFiles {
 }
 
 impl IntoDiagnostic<'_> for InvalidMetadataFiles {
+    #[track_caller]
     fn into_diagnostic(
         self,
         handler: &'_ rustc_errors::Handler,
@@ -606,6 +632,7 @@ pub struct CannotFindCrate {
 }
 
 impl IntoDiagnostic<'_> for CannotFindCrate {
+    #[track_caller]
     fn into_diagnostic(
         self,
         handler: &'_ rustc_errors::Handler,
@@ -665,6 +692,7 @@ pub struct CrateLocationUnknownType<'a> {
     #[primary_span]
     pub span: Span,
     pub path: &'a Path,
+    pub crate_name: Symbol,
 }
 
 #[derive(Diagnostic)]