note: lint level defined here
--> $DIR/default_hash_types.rs:10:8
|
-LL | #[deny(default_hash_types)]
- | ^^^^^^^^^^^^^^^^^^
+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