#![feature(lang_items)]
#![feature(needs_allocator)]
#![feature(nonzero)]
-#![feature(offset_to)]
#![feature(optin_builtin_traits)]
#![feature(pattern)]
#![feature(pin)]
#![feature(placement_in_syntax)]
#![feature(placement_new_protocol)]
#![feature(ptr_internals)]
+#![feature(ptr_offset_from)]
#![feature(rustc_attrs)]
#![feature(slice_get_slice)]
#![feature(slice_rsplit)]