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-rw-r--r--src/librustc_mir/transform/check_unsafety.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/librustc_mir/transform/check_unsafety.rs b/src/librustc_mir/transform/check_unsafety.rs
index 595b0432015..567fa42c83a 100644
--- a/src/librustc_mir/transform/check_unsafety.rs
+++ b/src/librustc_mir/transform/check_unsafety.rs
@@ -649,7 +649,7 @@ pub fn check_unsafety(tcx: TyCtxt<'_>, def_id: DefId) {
             unsafe_unused.push(block_id);
         }
     }
-    unsafe_unused.sort_by_cached_key(|hir_id| tcx.hir().hir_id_to_node_id(*hir_id));
+    unsafe_unused.sort_by_cached_key(|hir_id| tcx.hir().span(*hir_id));
 
     for &block_id in &unsafe_unused {
         report_unused_unsafe(tcx, &unsafe_used, block_id);