3 files changed, 3 insertions, 7 deletions
diff --git a/src/liballoc/boxed.rs b/src/liballoc/boxed.rs
index 804c593467e..1afb49d9184 100644
--- a/src/liballoc/boxed.rs
+++ b/src/liballoc/boxed.rs
@@ -104,7 +104,6 @@ pub struct ExchangeHeapSingleton {
 /// See the [module-level documentation](../../std/boxed/index.html) for more.
 #[lang = "owned_box"]
 #[stable(feature = "rust1", since = "1.0.0")]
-#[fundamental]
 pub struct Box<T: ?Sized>(Unique<T>);
 
 /// `IntermediateBox` represents uninitialized backing storage for `Box`.
diff --git a/src/liballoc/lib.rs b/src/liballoc/lib.rs
index 5d31385462c..f665b1e1924 100644
--- a/src/liballoc/lib.rs
+++ b/src/liballoc/lib.rs
@@ -75,17 +75,15 @@
 #![cfg_attr(not(stage0), needs_allocator)]
 
 #![cfg_attr(stage0, feature(rustc_attrs))]
+#![cfg_attr(stage0, feature(no_std))]
 #![cfg_attr(stage0, allow(unused_attributes))]
 #![feature(allocator)]
 #![feature(box_syntax)]
 #![feature(coerce_unsized)]
-#![feature(core)]
 #![feature(core_intrinsics)]
-#![feature(core_slice_ext)]
 #![feature(custom_attribute)]
 #![feature(fundamental)]
 #![feature(lang_items)]
-#![feature(no_std)]
 #![feature(nonzero)]
 #![feature(num_bits_bytes)]
 #![feature(optin_builtin_traits)]
@@ -103,9 +101,8 @@
 #![allow(unused_attributes)]
 #![feature(dropck_parametricity)]
 #![feature(unsize)]
-#![feature(core_slice_ext)]
-#![feature(core_str_ext)]
 #![feature(drop_in_place)]
+#![feature(fn_traits)]
 
 #![cfg_attr(stage0, feature(alloc_system))]
 #![cfg_attr(not(stage0), feature(needs_allocator))]
diff --git a/src/liballoc/raw_vec.rs b/src/liballoc/raw_vec.rs
index 78deed0c84f..92f35c08a7d 100644
--- a/src/liballoc/raw_vec.rs
+++ b/src/liballoc/raw_vec.rs
@@ -10,7 +10,7 @@
 
 use core::ptr::Unique;
 use core::mem;
-use core::slice::{self, SliceExt};
+use core::slice;
 use heap;
 use super::oom;
 use super::boxed::Box;