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-rw-r--r--src/librustc_errors/lib.rs1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/librustc_errors/lib.rs b/src/librustc_errors/lib.rs
index 3582c2359c8..d31db4b2d00 100644
--- a/src/librustc_errors/lib.rs
+++ b/src/librustc_errors/lib.rs
@@ -17,6 +17,7 @@
 #![feature(range_contains)]
 #![cfg_attr(unix, feature(libc))]
 #![cfg_attr(not(stage0), feature(nll))]
+#![cfg_attr(not(stage0), feature(infer_outlives_requirements))]
 #![feature(optin_builtin_traits)]
 
 extern crate atty;