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-rw-r--r--compiler/rustc_query_impl/src/plumbing.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/rustc_query_impl/src/plumbing.rs b/compiler/rustc_query_impl/src/plumbing.rs
index 6ad72e37a8c..a290bd10bea 100644
--- a/compiler/rustc_query_impl/src/plumbing.rs
+++ b/compiler/rustc_query_impl/src/plumbing.rs
@@ -358,7 +358,7 @@ pub(crate) fn encode_query_results<'a, 'tcx, Q>(
     assert!(query.query_state(qcx).all_inactive());
     let cache = query.query_cache(qcx);
     cache.iter(&mut |key, value, dep_node| {
-        if query.cache_on_disk(qcx.tcx, &key) {
+        if query.cache_on_disk(qcx.tcx, key) {
             let dep_node = SerializedDepNodeIndex::new(dep_node.index());
 
             // Record position of the cache entry.