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-rw-r--r--compiler/rustc_session/src/lib.rs1
1 files changed, 1 insertions, 0 deletions
diff --git a/compiler/rustc_session/src/lib.rs b/compiler/rustc_session/src/lib.rs
index 59b4981dd01..044be906b55 100644
--- a/compiler/rustc_session/src/lib.rs
+++ b/compiler/rustc_session/src/lib.rs
@@ -5,6 +5,7 @@
 #![feature(never_type)]
 #![feature(once_cell)]
 #![feature(option_get_or_insert_default)]
+#![feature(rustc_attrs)]
 #![recursion_limit = "256"]
 #![allow(rustc::potential_query_instability)]