1 files changed, 2 insertions, 15 deletions
diff --git a/src/librustdoc/core.rs b/src/librustdoc/core.rs
index 858e939bd96..8232353f915 100644
--- a/src/librustdoc/core.rs
+++ b/src/librustdoc/core.rs
@@ -38,7 +38,6 @@ pub(crate) struct ResolverCaches {
     /// Traits in scope for a given module.
     /// See `collect_intra_doc_links::traits_implemented_by` for more details.
     pub(crate) traits_in_scope: DefIdMap<Vec<TraitCandidate>>,
-    pub(crate) all_traits: Option<Vec<DefId>>,
     pub(crate) all_trait_impls: Option<Vec<DefId>>,
     pub(crate) all_macro_rules: FxHashMap<Symbol, Res<NodeId>>,
 }
@@ -134,12 +133,6 @@ impl<'tcx> DocContext<'tcx> {
         }
     }
 
-    pub(crate) fn with_all_traits(&mut self, f: impl FnOnce(&mut Self, &[DefId])) {
-        let all_traits = self.resolver_caches.all_traits.take();
-        f(self, all_traits.as_ref().expect("`all_traits` are already borrowed"));
-        self.resolver_caches.all_traits = all_traits;
-    }
-
     pub(crate) fn with_all_trait_impls(&mut self, f: impl FnOnce(&mut Self, &[DefId])) {
         let all_trait_impls = self.resolver_caches.all_trait_impls.take();
         f(self, all_trait_impls.as_ref().expect("`all_trait_impls` are already borrowed"));
@@ -353,14 +346,8 @@ pub(crate) fn run_global_ctxt(
     });
     rustc_passes::stability::check_unused_or_stable_features(tcx);
 
-    let auto_traits = resolver_caches
-        .all_traits
-        .as_ref()
-        .expect("`all_traits` are already borrowed")
-        .iter()
-        .copied()
-        .filter(|&trait_def_id| tcx.trait_is_auto(trait_def_id))
-        .collect();
+    let auto_traits =
+        tcx.all_traits().filter(|&trait_def_id| tcx.trait_is_auto(trait_def_id)).collect();
     let access_levels = tcx.privacy_access_levels(()).map_id(Into::into);
 
     let mut ctxt = DocContext {