[fmt] added rustfmt.toml and applied it

Updating cc               v1.0.90 -> v1.0.91
Updating getrandom        v0.2.12 -> v0.2.13
Updating h2               v0.3.25 -> v0.3.26
Updating pin-project-lite v0.2.13 -> v0.2.14
Updating strsim           v0.11.0 -> v0.11.1
Updating syn              v2.0.55 -> v2.0.58

Cargo.lock

@@ -88,7 +88,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e01ed3140b2f8d422c68afa1ed2e85d996ea619c988ac834d255db32138655cb"
 dependencies = [
  "quote",
- "syn 2.0.55",
+ "syn 2.0.58",
 ]
 
 [[package]]
@@ -203,7 +203,7 @@ dependencies = [
  "actix-router",
  "proc-macro2",
  "quote",
- "syn 2.0.55",
+ "syn 2.0.58",
 ]
 
 [[package]]
@@ -392,9 +392,9 @@ dependencies = [
 
 [[package]]
 name = "cc"
-version = "1.0.90"
+version = "1.0.91"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8cd6604a82acf3039f1144f54b8eb34e91ffba622051189e71b781822d5ee1f5"
+checksum = "1fd97381a8cc6493395a5afc4c691c1084b3768db713b73aa215217aa245d153"
 dependencies = [
  "jobserver",
  "libc",
@@ -437,7 +437,7 @@ dependencies = [
  "heck",
  "proc-macro2",
  "quote",
- "syn 2.0.55",
+ "syn 2.0.58",
 ]
 
 [[package]]
@@ -620,9 +620,9 @@ dependencies = [
 
 [[package]]
 name = "getrandom"
-version = "0.2.12"
+version = "0.2.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "190092ea657667030ac6a35e305e62fc4dd69fd98ac98631e5d3a2b1575a12b5"
+checksum = "a06fddc2749e0528d2813f95e050e87e52c8cbbae56223b9babf73b3e53b0cc6"
 dependencies = [
  "cfg-if",
  "libc",
@@ -637,9 +637,9 @@ checksum = "4271d37baee1b8c7e4b708028c57d816cf9d2434acb33a549475f78c181f6253"
 
 [[package]]
 name = "h2"
-version = "0.3.25"
+version = "0.3.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4fbd2820c5e49886948654ab546d0688ff24530286bdcf8fca3cefb16d4618eb"
+checksum = "81fe527a889e1532da5c525686d96d4c2e74cdd345badf8dfef9f6b39dd5f5e8"
 dependencies = [
  "bytes",
  "fnv",
@@ -886,9 +886,9 @@ checksum = "e3148f5046208a5d56bcfc03053e3ca6334e51da8dfb19b6cdc8b306fae3283e"
 
 [[package]]
 name = "pin-project-lite"
-version = "0.2.13"
+version = "0.2.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8afb450f006bf6385ca15ef45d71d2288452bc3683ce2e2cacc0d18e4be60b58"
+checksum = "bda66fc9667c18cb2758a2ac84d1167245054bcf85d5d1aaa6923f45801bdd02"
 
 [[package]]
 name = "pin-utils"
@@ -1056,7 +1056,7 @@ checksum = "7eb0b34b42edc17f6b7cac84a52a1c5f0e1bb2227e997ca9011ea3dd34e8610b"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.55",
+ "syn 2.0.58",
 ]
 
 [[package]]
@@ -1139,9 +1139,9 @@ dependencies = [
 
 [[package]]
 name = "strsim"
-version = "0.11.0"
+version = "0.11.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5ee073c9e4cd00e28217186dbe12796d692868f432bf2e97ee73bed0c56dfa01"
+checksum = "7da8b5736845d9f2fcb837ea5d9e2628564b3b043a70948a3f0b778838c5fb4f"
 
 [[package]]
 name = "syn"
@@ -1156,9 +1156,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "2.0.55"
+version = "2.0.58"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "002a1b3dbf967edfafc32655d0f377ab0bb7b994aa1d32c8cc7e9b8bf3ebb8f0"
+checksum = "44cfb93f38070beee36b3fef7d4f5a16f27751d94b187b666a5cc5e9b0d30687"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1518,7 +1518,7 @@ checksum = "9ce1b18ccd8e73a9321186f97e46f9f04b778851177567b1975109d26a08d2a6"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.55",
+ "syn 2.0.58",
 ]
 
 [[package]]

rustfmt.toml

@@ -0,0 +1,3 @@
+group_imports = "StdExternalCrate"
+imports_granularity = "Crate"
+imports_layout = "HorizontalVertical"

src/main.rs

@@ -1,9 +1,10 @@
-use actix_web::{App, HttpServer};
-use std::env;
-use std::net::IpAddr;
-use std::net::SocketAddr;
-use std::thread::available_parallelism;
+use std::{
+    env,
+    net::{IpAddr, SocketAddr},
+    thread::available_parallelism,
+};
 
+use actix_web::{App, HttpServer};
 use clap::{crate_name, crate_version, Parser};
 
 #[derive(Parser, Debug)]