1 files changed, 6 insertions, 5 deletions

diff --git a/compiler/rustc_incremental/src/persist/dirty_clean.rs b/compiler/rustc_incremental/src/persist/dirty_clean.rs
index 43274091c..f9cd01fd8 100644
--- a/compiler/rustc_incremental/src/persist/dirty_clean.rs
+++ b/compiler/rustc_incremental/src/persist/dirty_clean.rs
@@ -22,6 +22,7 @@
 use crate::errors;
 use rustc_ast::{self as ast, Attribute, NestedMetaItem};
 use rustc_data_structures::fx::FxHashSet;
+use rustc_data_structures::unord::UnordSet;
 use rustc_hir::def_id::LocalDefId;
 use rustc_hir::intravisit;
 use rustc_hir::Node as HirNode;
@@ -125,7 +126,7 @@ const LABELS_ADT: &[&[&str]] = &[BASE_HIR, BASE_STRUCT];
 //
 //     type_of for these.
 
-type Labels = FxHashSet<String>;
+type Labels = UnordSet<String>;
 
 /// Represents the requested configuration by rustc_clean/dirty
 struct Assertion {
@@ -197,7 +198,7 @@ impl<'tcx> DirtyCleanVisitor<'tcx> {
         let (name, mut auto) = self.auto_labels(item_id, attr);
         let except = self.except(attr);
         let loaded_from_disk = self.loaded_from_disk(attr);
-        for e in except.iter() {
+        for e in except.items().into_sorted_stable_ord() {
             if !auto.remove(e) {
                 self.tcx.sess.emit_fatal(errors::AssertionAuto { span: attr.span, name, e });
             }
@@ -376,15 +377,15 @@ impl<'tcx> DirtyCleanVisitor<'tcx> {
                 continue;
             };
             self.checked_attrs.insert(attr.id);
-            for label in assertion.clean {
+            for label in assertion.clean.items().into_sorted_stable_ord() {
                 let dep_node = DepNode::from_label_string(self.tcx, &label, def_path_hash).unwrap();
                 self.assert_clean(item_span, dep_node);
             }
-            for label in assertion.dirty {
+            for label in assertion.dirty.items().into_sorted_stable_ord() {
                 let dep_node = DepNode::from_label_string(self.tcx, &label, def_path_hash).unwrap();
                 self.assert_dirty(item_span, dep_node);
             }
-            for label in assertion.loaded_from_disk {
+            for label in assertion.loaded_from_disk.items().into_sorted_stable_ord() {
                 let dep_node = DepNode::from_label_string(self.tcx, &label, def_path_hash).unwrap();
                 self.assert_loaded_from_disk(item_span, dep_node);
             }