Following the discussion here: https://users.rust-lang.org/t/c-char-to-str-or-string/9417/9 changed to use to_str -> to_owned

Author: botev

src/device/mod.rs

@@ -76,7 +76,7 @@ pub fn info_string(verbose: bool) -> String {
         let err_val = af_info_string(&mut tmp, verbose);
         HANDLE_ERROR(AfError::from(err_val));
 
-        let result = CString::from_raw(tmp).into_string().unwrap();
+        let result = (*CString::from_raw(tmp)).to_str().unwrap().to_owned();
 
         let err_val = af_free_host(tmp as *mut c_void);
         HANDLE_ERROR(AfError::from(err_val));