chore: update Rust to 2024 edition (#2066)

easytier/src/peers/peer_session.rs

@@ -1,7 +1,7 @@
 use std::{
     sync::{
-        atomic::{AtomicBool, AtomicU32, Ordering},
         Arc, Mutex, RwLock,
+        atomic::{AtomicBool, AtomicU32, Ordering},
     },
     time::{SystemTime, UNIX_EPOCH},
 };
@@ -10,7 +10,7 @@ use atomic_shim::AtomicU64;
 
 use crate::{
     common::PeerId,
-    peers::encrypt::{create_encryptor, Encryptor},
+    peers::encrypt::{Encryptor, create_encryptor},
     tunnel::packet_def::{StandardAeadTail, ZCPacket},
 };
 use anyhow::anyhow;
@@ -189,11 +189,11 @@ impl PeerSessionStore {
             PeerSessionAction::Sync | PeerSessionAction::Create => {
                 let root_key = root_key_32.ok_or_else(|| anyhow!("missing root_key"))?;
                 // If the existing session is invalidated, remove it so we create a fresh one
-                if let Some(existing) = self.sessions.get(key) {
-                    if !existing.is_valid() {
-                        drop(existing);
-                        self.sessions.remove(key);
-                    }
+                if let Some(existing) = self.sessions.get(key)
+                    && !existing.is_valid()
+                {
+                    drop(existing);
+                    self.sessions.remove(key);
                 }
                 let session = self
                     .sessions