Update rust edition to 2021

This commit changes the Rust edition from the default of 2015 to the
latest of 2021.

Cargo.toml

@@ -3,6 +3,7 @@ name = "eagle"
 version = "0.1.0"
 authors = ["Adam Goforth <[email protected]>"]
 license = "MIT"
+edition = "2021"
 
 [dependencies]
 notify = "^2.4.1"

src/actions/command.rs

@@ -1,4 +1,4 @@
-use actions::Action;
+use crate::actions::Action;
 use notify::Event;
 use std::io::{self, Write};
 use std::process::{Command, Stdio};
@@ -83,7 +83,7 @@ mod test {
 
     use super::*;
 
-    use actions::Action;
+    use crate::actions::Action;
     use notify::{Event, Op};
     use std::path::PathBuf;
 

src/actions/print.rs

@@ -1,4 +1,4 @@
-use actions::Action;
+use crate::actions::Action;
 use notify::op;
 use notify::op::Op;
 use notify::Event;
@@ -57,7 +57,7 @@ mod test {
 
     use super::*;
 
-    use actions::Action;
+    use crate::actions::Action;
     use notify::{Event, Op};
     use std::path::PathBuf;
 

src/files_watcher.rs

@@ -8,7 +8,7 @@ use std::collections::HashMap;
 use std::io;
 use std::path::PathBuf;
 
-use actions::Action;
+use crate::actions::Action;
 
 pub struct FilesWatcher {
     watcher: Box<RecommendedWatcher>,
@@ -90,8 +90,8 @@ mod test {
 
     use self::rand::distributions::Alphanumeric;
     use self::rand::{thread_rng, Rng};
-    use actions::print::PrintAction;
-    use actions::Action;
+    use crate::actions::print::PrintAction;
+    use crate::actions::Action;
     use std::env::temp_dir;
     use std::fs::remove_file;
     use std::fs::File;

src/main.rs

@@ -11,12 +11,12 @@ pub mod files_watcher;
 use std::path::PathBuf;
 use std::process;
 
-use actions::command::CommandAction;
-use actions::print::PrintAction;
-use actions::Action;
+use crate::actions::command::CommandAction;
+use crate::actions::print::PrintAction;
+use crate::actions::Action;
 use clap::Parser;
-use config::SettingsConfig;
-use files_watcher::FilesWatcher;
+use crate::config::SettingsConfig;
+use crate::files_watcher::FilesWatcher;
 
 #[derive(Parser)]
 #[command(version, about, long_about = None)]