remove some compiler warnings

1 files changed, 2 insertions, 3 deletions

diff --git a/src/libstd/ffi/c_str.rs b/src/libstd/ffi/c_str.rs
index 69bcc82f682..c94edb9d2a1 100644
--- a/src/libstd/ffi/c_str.rs
+++ b/src/libstd/ffi/c_str.rs
@@ -422,15 +422,14 @@ mod tests {
     use prelude::v1::*;
     use super::*;
     use libc;
-    use mem;
 
     #[test]
     fn c_to_rust() {
         let data = b"123\0";
         let ptr = data.as_ptr() as *const libc::c_char;
         unsafe {
-            assert_eq!(c_str_to_bytes(&ptr), b"123");
-            assert_eq!(c_str_to_bytes_with_nul(&ptr), b"123\0");
+            assert_eq!(CStr::from_ptr(ptr).to_bytes(), b"123");
+            assert_eq!(CStr::from_ptr(ptr).to_bytes_with_nul(), b"123\0");
         }
     }