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-rw-r--r--src/librustc_codegen_utils/lib.rs4
1 files changed, 0 insertions, 4 deletions
diff --git a/src/librustc_codegen_utils/lib.rs b/src/librustc_codegen_utils/lib.rs
index 6b802bf530e..38906bbaef8 100644
--- a/src/librustc_codegen_utils/lib.rs
+++ b/src/librustc_codegen_utils/lib.rs
@@ -3,10 +3,6 @@
 //! This API is completely unstable and subject to change.
 
 #![doc(html_root_url = "https://doc.rust-lang.org/nightly/")]
-#![feature(arbitrary_self_types)]
-#![feature(box_patterns)]
-#![feature(box_syntax)]
-#![feature(core_intrinsics)]
 #![feature(never_type)]
 #![feature(nll)]
 #![feature(in_band_lifetimes)]