--- a/rust/hwphysics/src/data.rs	Wed Aug 28 23:06:34 2019 +0300
+++ b/rust/hwphysics/src/data.rs	Thu Aug 29 00:06:31 2019 +0300
@@ -2,7 +2,6 @@
 use std::{
     any::TypeId,
     fmt::{Debug, Error, Formatter},
-    io::Write,
     mem::{size_of, MaybeUninit},
     num::NonZeroU16,
     ptr::{copy_nonoverlapping, null_mut, NonNull},