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-rw-r--r--compiler/rustc_hir/src/lib.rs3
1 files changed, 2 insertions, 1 deletions
diff --git a/compiler/rustc_hir/src/lib.rs b/compiler/rustc_hir/src/lib.rs
index 1c4aa420c..98d967cc0 100644
--- a/compiler/rustc_hir/src/lib.rs
+++ b/compiler/rustc_hir/src/lib.rs
@@ -5,10 +5,11 @@
#![feature(associated_type_defaults)]
#![feature(closure_track_caller)]
#![feature(const_btree_len)]
-#![feature(once_cell)]
+#![feature(let_chains)]
#![feature(min_specialization)]
#![feature(never_type)]
#![feature(rustc_attrs)]
+#![feature(variant_count)]
#![recursion_limit = "256"]
#![deny(rustc::untranslatable_diagnostic)]
#![deny(rustc::diagnostic_outside_of_impl)]