use option::Option;
use option::Option::{Some, None};
use ops::{Deref, FnOnce};
-use result::Result::{Ok, Err};
+use result::Result::Ok;
use result;
use slice::SliceExt;
use slice;
use str::{self, StrExt, Utf8Error};
+// NOTE: for old macros; remove after the next snapshot
+#[cfg(stage0)] use result::Result::Err;
+
pub use self::num::radix;
pub use self::num::Radix;
pub use self::num::RadixFmt;