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-rw-r--r--compiler/rustc_pattern_analysis/src/lib.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/rustc_pattern_analysis/src/lib.rs b/compiler/rustc_pattern_analysis/src/lib.rs
index 176dcbf6da4..f63d8b2d79f 100644
--- a/compiler/rustc_pattern_analysis/src/lib.rs
+++ b/compiler/rustc_pattern_analysis/src/lib.rs
@@ -6,7 +6,7 @@
 #![allow(rustc::diagnostic_outside_of_impl)]
 #![allow(rustc::untranslatable_diagnostic)]
 #![allow(unused_crate_dependencies)]
-#![cfg_attr(feature = "rustc", feature(let_chains))]
+#![cfg_attr(all(feature = "rustc", bootstrap), feature(let_chains))]
 // tidy-alphabetical-end
 
 pub mod constructor;