1 files changed, 4 insertions, 1 deletions
diff --git a/compiler/rustc_interface/src/passes.rs b/compiler/rustc_interface/src/passes.rs
index 747e36b6a1a..fde1872fb39 100644
--- a/compiler/rustc_interface/src/passes.rs
+++ b/compiler/rustc_interface/src/passes.rs
@@ -800,6 +800,7 @@ pub fn create_and_enter_global_ctxt<T, F: for<'tcx> FnOnce(TyCtxt<'tcx>) -> T>(
         sess.opts.cg.metadata.clone(),
         sess.cfg_version,
     );
+
     let outputs = util::build_output_filenames(&pre_configured_attrs, sess);
 
     let dep_type = DepsType { dep_names: rustc_query_impl::dep_kind_names() };
@@ -955,7 +956,9 @@ fn run_required_analyses(tcx: TyCtxt<'_>) {
             // Run unsafety check because it's responsible for stealing and
             // deallocating THIR.
             tcx.ensure_ok().check_unsafety(def_id);
-            tcx.ensure_ok().mir_borrowck(def_id)
+            if !tcx.is_typeck_child(def_id.to_def_id()) {
+                tcx.ensure_ok().mir_borrowck(def_id)
+            }
         });
     });
     sess.time("MIR_effect_checking", || {