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-rw-r--r--compiler/rustc_serialize/src/lib.rs3
1 files changed, 0 insertions, 3 deletions
diff --git a/compiler/rustc_serialize/src/lib.rs b/compiler/rustc_serialize/src/lib.rs
index cf5a9118275..c79786a839f 100644
--- a/compiler/rustc_serialize/src/lib.rs
+++ b/compiler/rustc_serialize/src/lib.rs
@@ -14,10 +14,7 @@ Core encoding and decoding interfaces.
 #![feature(nll)]
 #![feature(associated_type_bounds)]
 #![feature(min_specialization)]
-#![feature(vec_spare_capacity)]
 #![feature(core_intrinsics)]
-#![feature(maybe_uninit_array_assume_init)]
-#![feature(maybe_uninit_uninit_array)]
 #![feature(maybe_uninit_slice)]
 #![feature(new_uninit)]
 #![cfg_attr(test, feature(test))]