1 files changed, 39 insertions, 0 deletions
diff --git a/src/test/ui-fulldeps/internal-lints/default_hash_types.stderr b/src/test/ui-fulldeps/internal-lints/default_hash_types.stderr
new file mode 100644
index 000000000..9d13ee89b
--- /dev/null
+++ b/src/test/ui-fulldeps/internal-lints/default_hash_types.stderr
@@ -0,0 +1,39 @@
+error: prefer `FxHashMap` over `HashMap`, it has better performance
+  --> $DIR/default_hash_types.rs:16:41
+   |
+LL |     let _map: HashMap<String, String> = HashMap::default();
+   |                                         ^^^^^^^
+   |
+note: the lint level is defined here
+  --> $DIR/default_hash_types.rs:4:9
+   |
+LL | #![deny(rustc::default_hash_types)]
+   |         ^^^^^^^^^^^^^^^^^^^^^^^^^
+   = note: a `use rustc_data_structures::fx::FxHashMap` may be necessary
+
+error: prefer `FxHashMap` over `HashMap`, it has better performance
+  --> $DIR/default_hash_types.rs:16:15
+   |
+LL |     let _map: HashMap<String, String> = HashMap::default();
+   |               ^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = note: a `use rustc_data_structures::fx::FxHashMap` may be necessary
+
+error: prefer `FxHashSet` over `HashSet`, it has better performance
+  --> $DIR/default_hash_types.rs:19:33
+   |
+LL |     let _set: HashSet<String> = HashSet::default();
+   |                                 ^^^^^^^
+   |
+   = note: a `use rustc_data_structures::fx::FxHashSet` may be necessary
+
+error: prefer `FxHashSet` over `HashSet`, it has better performance
+  --> $DIR/default_hash_types.rs:19:15
+   |
+LL |     let _set: HashSet<String> = HashSet::default();
+   |               ^^^^^^^^^^^^^^^
+   |
+   = note: a `use rustc_data_structures::fx::FxHashSet` may be necessary
+
+error: aborting due to 4 previous errors
+