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-rw-r--r--compiler/rustc_data_structures/src/lib.rs3
1 files changed, 2 insertions, 1 deletions
diff --git a/compiler/rustc_data_structures/src/lib.rs b/compiler/rustc_data_structures/src/lib.rs
index 041d52aa20a..18bc2f896f2 100644
--- a/compiler/rustc_data_structures/src/lib.rs
+++ b/compiler/rustc_data_structures/src/lib.rs
@@ -21,7 +21,8 @@
 #![feature(iter_map_while)]
 #![feature(maybe_uninit_uninit_array)]
 #![feature(min_specialization)]
-#![feature(min_type_alias_impl_trait)]
+#![cfg_attr(bootstrap, feature(min_type_alias_impl_trait))]
+#![cfg_attr(not(bootstrap), feature(type_alias_impl_trait))]
 #![feature(new_uninit)]
 #![feature(nll)]
 #![feature(once_cell)]