1 files changed, 4 insertions, 4 deletions
diff --git a/src/libstd/num/strconv.rs b/src/libstd/num/strconv.rs
index e58872b8395..795534dc283 100644
--- a/src/libstd/num/strconv.rs
+++ b/src/libstd/num/strconv.rs
@@ -19,9 +19,9 @@ use num::{Float, FPNaN, FPInfinite, ToPrimitive};
 use num;
 use ops::{Add, Sub, Mul, Div, Rem, Neg};
 use option::{None, Option, Some};
-use slice::{CloneableVector, ImmutableVector, MutableVector};
+use slice::{ImmutableVector, MutableVector};
 use std::cmp::{Ord, Eq};
-use str::{StrAllocating, StrSlice};
+use str::StrSlice;
 use strbuf::StrBuf;
 use vec::Vec;
 
@@ -496,10 +496,10 @@ pub fn float_to_str_common<T:NumCast+Zero+One+Eq+Ord+NumStrConv+Float+
                              Div<T,T>+Neg<T>+Rem<T,T>+Mul<T,T>>(
         num: T, radix: uint, negative_zero: bool,
         sign: SignFormat, digits: SignificantDigits, exp_format: ExponentFormat, exp_capital: bool
-        ) -> (~str, bool) {
+        ) -> (StrBuf, bool) {
     let (bytes, special) = float_to_str_bytes_common(num, radix,
                                negative_zero, sign, digits, exp_format, exp_capital);
-    (StrBuf::from_utf8(bytes).unwrap().into_owned(), special)
+    (StrBuf::from_utf8(bytes).unwrap(), special)
 }
 
 // Some constants for from_str_bytes_common's input validation,