Prefer to_string() to format!()

2 files changed, 2 insertions, 2 deletions

diff --git a/src/libstd/sys/redox/net/udp.rs b/src/libstd/sys/redox/net/udp.rs
index 2ed67bd2836..22af02079e7 100644
--- a/src/libstd/sys/redox/net/udp.rs
+++ b/src/libstd/sys/redox/net/udp.rs
@@ -58,7 +58,7 @@ impl UdpSocket {
 
     pub fn recv(&self, buf: &mut [u8]) -> Result<usize> {
         if let Some(addr) = *self.get_conn() {
-            let from = self.0.dup(format!("{}", addr).as_bytes())?;
+            let from = self.0.dup(addr.to_string().as_bytes())?;
             from.read(buf)
         } else {
             Err(Error::new(ErrorKind::Other, "UdpSocket::recv not connected"))
diff --git a/src/libstd/sys_common/wtf8.rs b/src/libstd/sys_common/wtf8.rs
index bbb5980bd9d..45204b56ead 100644
--- a/src/libstd/sys_common/wtf8.rs
+++ b/src/libstd/sys_common/wtf8.rs
@@ -1245,7 +1245,7 @@ mod tests {
     #[test]
     fn wtf8_display() {
         fn d(b: &[u8]) -> String {
-            format!("{}", &unsafe { Wtf8::from_bytes_unchecked(b) })
+            (&unsafe { Wtf8::from_bytes_unchecked(b) }).to_string()
         }
 
         assert_eq!("", d("".as_bytes()));