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-rw-r--r--compiler/rustc_mir_dataflow/src/lib.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/rustc_mir_dataflow/src/lib.rs b/compiler/rustc_mir_dataflow/src/lib.rs
index a0efc623b8e..38f82b12746 100644
--- a/compiler/rustc_mir_dataflow/src/lib.rs
+++ b/compiler/rustc_mir_dataflow/src/lib.rs
@@ -1,10 +1,10 @@
 // tidy-alphabetical-start
+#![cfg_attr(bootstrap, feature(let_chains))]
 #![feature(assert_matches)]
 #![feature(associated_type_defaults)]
 #![feature(box_patterns)]
 #![feature(exact_size_is_empty)]
 #![feature(file_buffered)]
-#![feature(let_chains)]
 #![feature(never_type)]
 #![feature(try_blocks)]
 // tidy-alphabetical-end