add use statements for 2021 edition

src/app.rs

@@ -1,6 +1,8 @@
 use std::process::{Command, ExitStatus};
 
 use colored::Colorize;
+use log::info;
+use serde_derive::Deserialize;
 
 use crate::result::Result;
 

src/apps.rs

@@ -4,7 +4,9 @@ use std::io::Read;
 use std::path::PathBuf;
 
 use colored::Colorize;
+use log::error;
 use mio::{Poll, PollOpt, Ready};
+use serde_derive::Deserialize;
 
 use crate::app::App;
 use crate::proc::Proc;

src/main.rs

@@ -1,18 +1,3 @@
-extern crate chrono;
-extern crate colored;
-extern crate dirs;
-extern crate fern;
-extern crate getopts;
-#[macro_use]
-extern crate log;
-extern crate mio;
-extern crate mio_child_process;
-extern crate serde;
-#[macro_use]
-extern crate serde_derive;
-extern crate signal_hook;
-extern crate toml;
-
 mod app;
 mod apps;
 mod config;
@@ -23,6 +8,8 @@ mod run;
 
 use std::path::PathBuf;
 
+use log::{info, error};
+
 use apps::Apps;
 use config::Config;
 use proc::Proc;

src/proc.rs

@@ -2,6 +2,7 @@ use std::convert::TryInto;
 use std::process::{Command, Stdio};
 
 use colored::Colorize;
+use log::info;
 
 use mio::Token;
 use mio_child_process::{CommandAsync, Process};

src/run.rs

@@ -2,6 +2,7 @@ use std::boxed::Box;
 use std::sync::mpsc::TryRecvError;
 
 use colored::Colorize;
+use log::{info, error};
 
 use mio::{Events, Poll, PollOpt, Ready, Token};
 use mio_child_process::{ProcessEvent, StdioChannel};