--- a/xpcom/rust/gtest/bench-collections/Bench.cpp
+++ b/xpcom/rust/gtest/bench-collections/Bench.cpp
@@ -191,17 +191,17 @@ Bench_Cpp_MozHashSet(const Params* aPara
   for (size_t i = 0; i < aParams->mNumFailingLookups; i++) {
     for (size_t j = aParams->mNumInserts; j < aParams->mNumInserts*2; j++) {
       MOZ_RELEASE_ASSERT(!hs.lookup(aVals[j]));
     }
   }
 
   for (size_t i = 0; i < aParams->mNumIterations; i++) {
     size_t n = 0;
-    for (auto range = hs.all(); !range.empty(); range.popFront()) {
+    for (auto iter = hs.iter(); !iter.done(); iter.next()) {
       n++;
     }
     MOZ_RELEASE_ASSERT(aParams->mNumInserts == n);
     MOZ_RELEASE_ASSERT(hs.count() == n);
   }
 
   if (aParams->mRemoveInserts) {
     for (size_t j = 0; j < aParams->mNumInserts; j++) {