Handle `librustdoc` cases of `rustc::potential_query_instability` lint

1 files changed, 3 insertions, 3 deletions

diff --git a/compiler/rustc_resolve/src/rustdoc.rs b/compiler/rustc_resolve/src/rustdoc.rs
index d1c1b6c882e..02e255d7726 100644
--- a/compiler/rustc_resolve/src/rustdoc.rs
+++ b/compiler/rustc_resolve/src/rustdoc.rs
@@ -6,7 +6,7 @@ use pulldown_cmark::{
 };
 use rustc_ast as ast;
 use rustc_ast::util::comments::beautify_doc_string;
-use rustc_data_structures::fx::FxHashMap;
+use rustc_data_structures::fx::FxIndexMap;
 use rustc_middle::ty::TyCtxt;
 use rustc_span::def_id::DefId;
 use rustc_span::symbol::{Symbol, kw, sym};
@@ -235,8 +235,8 @@ fn span_for_value(attr: &ast::Attribute) -> Span {
 /// early and late doc link resolution regardless of their position.
 pub fn prepare_to_doc_link_resolution(
     doc_fragments: &[DocFragment],
-) -> FxHashMap<Option<DefId>, String> {
-    let mut res = FxHashMap::default();
+) -> FxIndexMap<Option<DefId>, String> {
+    let mut res = FxIndexMap::default();
     for fragment in doc_fragments {
         let out_str = res.entry(fragment.item_id).or_default();
         add_doc_fragment(out_str, fragment);