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-rw-r--r--compiler/rustc_borrowck/src/lib.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/rustc_borrowck/src/lib.rs b/compiler/rustc_borrowck/src/lib.rs
index 8dcfe014b65..ec89f5d4b40 100644
--- a/compiler/rustc_borrowck/src/lib.rs
+++ b/compiler/rustc_borrowck/src/lib.rs
@@ -4,7 +4,7 @@
 #![feature(rustdoc_internals)]
 #![doc(rust_logo)]
 #![feature(assert_matches)]
-#![feature(associated_type_bounds)]
+#![cfg_attr(bootstrap, feature(associated_type_bounds))]
 #![feature(box_patterns)]
 #![feature(control_flow_enum)]
 #![feature(let_chains)]