chore: rustfmt, clippy lints and code tidying

stub/build.rs

@@ -2,19 +2,24 @@ use std::process::Command;
 
 fn main() {
     let git_hash = Command::new("git")
-        .args(&["rev-parse", "--short", "HEAD"])
-        .output()
-        .ok()
-        .and_then(|out| String::from_utf8(out.stdout).ok())
-        .unwrap_or_else(|| "unknown".to_string());
-        
-    let git_date = Command::new("git")
-        .args(&["log", "-1", "--format=%cd", "--date=format:%Y.%m.%d"])
+        .args(["rev-parse", "--short", "HEAD"])
         .output()
         .ok()
         .and_then(|out| String::from_utf8(out.stdout).ok())
         .unwrap_or_else(|| "unknown".to_string());
 
-    let version = format!("{} ({} {})", env!("CARGO_PKG_VERSION"), git_date.trim(), git_hash.trim());
+    let git_date = Command::new("git")
+        .args(["log", "-1", "--format=%cd", "--date=format:%Y.%m.%d"])
+        .output()
+        .ok()
+        .and_then(|out| String::from_utf8(out.stdout).ok())
+        .unwrap_or_else(|| "unknown".to_string());
+
+    let version = format!(
+        "{} ({} {})",
+        env!("CARGO_PKG_VERSION"),
+        git_date.trim(),
+        git_hash.trim()
+    );
     println!("cargo:rustc-env=APP_VERSION={}", version);
 }