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-rw-r--r--src/librustc_codegen_utils/codegen_backend.rs2
1 files changed, 0 insertions, 2 deletions
diff --git a/src/librustc_codegen_utils/codegen_backend.rs b/src/librustc_codegen_utils/codegen_backend.rs
index 7a7a50a25fa..262cfb1658e 100644
--- a/src/librustc_codegen_utils/codegen_backend.rs
+++ b/src/librustc_codegen_utils/codegen_backend.rs
@@ -5,8 +5,6 @@
 //! This API is completely unstable and subject to change.
 
 #![doc(html_root_url = "https://doc.rust-lang.org/nightly/")]
-#![deny(warnings)]
-#![feature(box_syntax)]
 
 use std::any::Any;
 use std::sync::mpsc;