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-rw-r--r--src/libsyntax_ext/lib.rs3
1 files changed, 1 insertions, 2 deletions
diff --git a/src/libsyntax_ext/lib.rs b/src/libsyntax_ext/lib.rs
index b6721dd28f3..e100ef29225 100644
--- a/src/libsyntax_ext/lib.rs
+++ b/src/libsyntax_ext/lib.rs
@@ -18,7 +18,7 @@
 #![feature(decl_macro)]
 #![feature(str_escape)]
 
-#![cfg_attr(not(stage0), feature(rustc_diagnostic_macros))]
+#![feature(rustc_diagnostic_macros)]
 
 extern crate fmt_macros;
 #[macro_use]
@@ -29,7 +29,6 @@ extern crate rustc_data_structures;
 extern crate rustc_errors as errors;
 extern crate rustc_target;
 
-#[cfg(not(stage0))]
 mod diagnostics;
 
 mod assert;