diff --git a/src/libstd/io/mod.rs b/src/libstd/io/mod.rs index 0832206a48b..419bee1a624 100644 --- a/src/libstd/io/mod.rs +++ b/src/libstd/io/mod.rs @@ -24,7 +24,6 @@ use error::Error as StdError; use fmt; use iter::Iterator; use marker::Sized; -use mem; use ops::{Drop, FnOnce}; use option::Option::{self, Some, None}; use ptr::PtrExt; @@ -69,8 +68,8 @@ fn with_end_to_cap(v: &mut Vec, f: F) -> Result unsafe { let n = try!(f({ let base = v.as_mut_ptr().offset(v.len() as isize); - black_box(slice::from_raw_mut_buf(mem::copy_lifetime(v, &base), - v.capacity() - v.len())) + black_box(slice::from_raw_parts_mut(base, + v.capacity() - v.len())) })); // If the closure (typically a `read` implementation) reported that it