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-rw-r--r--compiler/rustc_interface/src/lib.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/rustc_interface/src/lib.rs b/compiler/rustc_interface/src/lib.rs
index 67e0be93523..41280707183 100644
--- a/compiler/rustc_interface/src/lib.rs
+++ b/compiler/rustc_interface/src/lib.rs
@@ -1,8 +1,8 @@
 // tidy-alphabetical-start
+#![cfg_attr(bootstrap, feature(let_chains))]
 #![feature(decl_macro)]
 #![feature(file_buffered)]
 #![feature(iter_intersperse)]
-#![feature(let_chains)]
 #![feature(try_blocks)]
 // tidy-alphabetical-end