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-rw-r--r--src/libfmt_macros/lib.rs2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/libfmt_macros/lib.rs b/src/libfmt_macros/lib.rs
index 373db1f1664..d2209da0ca3 100644
--- a/src/libfmt_macros/lib.rs
+++ b/src/libfmt_macros/lib.rs
@@ -20,6 +20,8 @@
        html_playground_url = "https://play.rust-lang.org/",
        test(attr(deny(warnings))))]
 
+#![cfg_attr(not(stage0), feature(nll))]
+
 pub use self::Piece::*;
 pub use self::Position::*;
 pub use self::Alignment::*;