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-rw-r--r--compiler/rustc_interface/src/lib.rs1
1 files changed, 1 insertions, 0 deletions
diff --git a/compiler/rustc_interface/src/lib.rs b/compiler/rustc_interface/src/lib.rs
index b81a7402701..1c4dda2a436 100644
--- a/compiler/rustc_interface/src/lib.rs
+++ b/compiler/rustc_interface/src/lib.rs
@@ -1,6 +1,7 @@
 // tidy-alphabetical-start
 #![feature(decl_macro)]
 #![feature(file_buffered)]
+#![feature(iter_intersperse)]
 #![feature(let_chains)]
 #![feature(try_blocks)]
 #![warn(unreachable_pub)]