Call hir_crate(()) only if we are in crate collector mode

Author: aerooneqq

compiler/rustc_middle/src/hir/map.rs

@@ -1312,8 +1312,6 @@ struct ItemCollector<'tcx> {
 
 impl<'tcx> ItemCollector<'tcx> {
     fn new(tcx: TyCtxt<'tcx>, crate_collector: bool) -> ItemCollector<'tcx> {
-        let krate = tcx.hir_crate(());
-
         let mut collector = ItemCollector {
             crate_collector,
             tcx,
@@ -1327,10 +1325,13 @@ impl<'tcx> ItemCollector<'tcx> {
             nested_bodies: Vec::default(),
             delayed_lint_items: Vec::default(),
             eiis: Vec::default(),
-            delayed_ids: crate_collector.then(|| &krate.delayed_ids),
+            delayed_ids: None,
         };
 
         if crate_collector {
+            let krate = tcx.hir_crate(());
+            collector.delayed_ids = Some(&krate.delayed_ids);
+
             let delayed_kinds =
                 krate.delayed_ids.iter().copied().map(|id| (id, krate.owners[id].expect_delayed()));