remove some warnings

src/main.rs

@@ -30,7 +30,6 @@ mod ping;
 
 use std::path::PathBuf;
 use structopt::StructOpt;
-use std::convert::TryInto;
 
 #[derive(Debug, StructOpt)]
 #[structopt(name = "xbnet", about = "Networking for XBee Radios", author = "John Goerzen <jgoerzen@complete.org>")]
@@ -98,7 +97,7 @@ fn main() {
             thread::spawn(move || pipe::stdout_processor(&mut xbreframer, &mut xb.ser_reader).expect("Failure in stdout_processor"));
             pipe::stdin_processor(dest_u64, 1600, xbeesender).expect("Failure in stdin_processor");
             // Make sure queued up data is sent
-            writerthread.join();
+            let _ = writerthread.join();
 
         },
     }

src/pipe.rs

@@ -22,12 +22,8 @@ use crate::xbpacket::*;
 use crate::ser::*;
 use crate::xbrx::*;
 use crossbeam_channel;
-use std::thread;
-use std::time::Duration;
 use bytes::*;
 
-const INTERVAL: u64 = 5;
-
 pub fn stdin_processor(dest: u64, maxframesize: usize,
                        sender: crossbeam_channel::Sender<XBTX>) -> io::Result<()> {
     let stdin = io::stdin();

src/ser.rs

@@ -20,7 +20,6 @@ use std::io;
 use serialport::prelude::*;
 use std::io::{BufReader, BufRead, Write};
 use log::*;
-use std::sync::{Arc, Mutex};
 use std::time::Duration;
 use std::path::PathBuf;
 use bytes::*;

src/xb.rs

@@ -24,13 +24,10 @@ use std::io;
 use crossbeam_channel;
 use hex;
 use std::thread;
-use std::time::{Duration, Instant};
+use std::time::{Duration};
-use format_escape_default::format_escape_default;
 use std::path::PathBuf;
 use bytes::Bytes;
-use std::convert::TryInto;
 use crate::xbpacket::*;
-use serialport::prelude::*;
 
 pub fn mkerror(msg: &str) -> Error {
     Error::new(ErrorKind::Other, msg)

src/xbrx.rs

@@ -21,15 +21,8 @@
 use crate::ser::*;
 use crate::xbpacket::*;
 use log::*;
-use std::fs;
+use std::io::{Read};
-use std::io::{BufRead, BufReader, Error, ErrorKind, Read};
-use std::io;
-use crossbeam_channel;
 use hex;
-use std::thread;
-use std::time::{Duration, Instant};
-use format_escape_default::format_escape_default;
-use std::path::PathBuf;
 use bytes::*;
 use std::collections::HashMap;