Changed notification from create to modify

mbsync doesnt seem to create the files, it moves them into place.
Added an existence check and switched the watched event to modify

flake.nix

@@ -11,7 +11,7 @@
       };
       packages.${system}.default = pkgs.rustPlatform.buildRustPackage {
         pname = "mbdirnotify";
-        version = "0.4.3";
+        version = "0.0.1";
         cargoLock.lockFile = ./Cargo.lock;
         src = pkgs.lib.cleanSource ./.;
       };

src/main.rs

@@ -48,8 +48,11 @@ fn watch(event: notify::Result<Event>) {
 
 fn parse_event(event: notify::Result<Event>) -> Result<()> {
     let event = event?;
-    if let EventKind::Create(_kind) = event.kind {
+    if let EventKind::Modify(_kind) = event.kind {
         if let Some(p) = event.paths.first() {
+            if !p.exists() {
+                return Ok(());
+            }
             let mut f = File::open(&p)?;
             let mut buf = vec![];
             f.read_to_end(&mut buf)?;