include log crate and change println to log macros

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "ntp"
-version = "0.1.1"
+version = "0.1.2"
 authors = ["Jeff Belgum <jeffbelgum@gmail.com>"]
 license = "MIT/Apache-2.0"
 description = "Library for parsing and communicating over Network Time Protocol."
@@ -16,4 +16,5 @@ byteorder = "0.5.3"
 conv = "0.3.2"
 custom_derive = "0.1.5"
 error-chain = "0.5.0"
+log = "0.3.6"
 time = "0.1.35"

src/lib.rs

@@ -18,6 +18,7 @@ fn main() {
 #[macro_use] extern crate custom_derive;
 #[macro_use] extern crate conv;
 #[macro_use] extern crate error_chain;
+#[macro_use] extern crate log;
 extern crate byteorder;
 extern crate time;
 
@@ -38,12 +39,12 @@ pub fn request<A: ToSocketAddrs>(addr: A) -> errors::Result<packet::Packet> {
     sock.set_read_timeout(Some(Duration::from_secs(5)))?;
     sock.set_write_timeout(Some(Duration::from_secs(5)))?;
     let sz = sock.send_to(&data, addr)?;
-    println!("{:?}", sock.local_addr());
-    println!("sent: {}", sz);
+    debug!("{:?}", sock.local_addr());
+    debug!("sent: {}", sz);
     let mut buf = vec![0; 48];
     let res = sock.recv(&mut buf)?;
-    println!("recv: {:?}", res);
-    println!("{:?}", &buf[..]);
+    debug!("recv: {:?}", res);
+    debug!("{:?}", &buf[..]);
     let rdr = Cursor::new(&buf);
     return Ok(packet::Packet::try_from(rdr)?);
 }

src/packet.rs

@@ -36,7 +36,7 @@ pub struct Packet {
 
 impl Packet {
     pub fn new_client() -> Packet {
-        println!("{}", TimestampFormat::from(time::now().to_timespec()));
+        trace!("{}", TimestampFormat::from(time::now().to_timespec()));
         Packet {
             mode: Mode::Client,
             vn: Version::Ver2,