fmt: apply rustfmt

src/main.rs

@@ -64,7 +64,9 @@ fn build(image: &str) -> Result<()> {
     // Step 2: find vmlinuz
     let vmlinuz_src = mount_path.join("vmlinuz");
     if !vmlinuz_src.exists() {
-        anyhow::bail!("Image missing required /vmlinuz. Place kernel at /vmlinuz in Containerfile.");
+        anyhow::bail!(
+            "Image missing required /vmlinuz. Place kernel at /vmlinuz in Containerfile."
+        );
     }
 
     // Step 3: prepare registry dir
@@ -106,8 +108,12 @@ fn build(image: &str) -> Result<()> {
 
     // Gzip initrd
     let initrd_file = fs::File::open(&initrd_raw)?;
-    let mut initrd_writer = flate2::write::GzEncoder::new(File::create(&initrd_path)?, flate2::Compression::default());
+    let mut initrd_writer =
-    std::io::copy(&mut std::io::BufReader::new(initrd_file), &mut initrd_writer)?;
+        flate2::write::GzEncoder::new(File::create(&initrd_path)?, flate2::Compression::default());
+    std::io::copy(
+        &mut std::io::BufReader::new(initrd_file),
+        &mut initrd_writer,
+    )?;
     initrd_writer.finish()?;
     fs::remove_file(&initrd_raw)?;
     println!("Created initrd -> {}", initrd_path.display());
@@ -139,18 +145,27 @@ fn run(name: &str) -> Result<()> {
     );
     // Launch with a 5-second timeout for quick smoke verification
     let status = Command::new("timeout")
-        .args(["5", "qemu-system-x86_64",
+        .args([
-               "-m", "256",
+            "5",
+            "qemu-system-x86_64",
+            "-m",
+            "256",
             "-nographic",
-               "-kernel", vmlinuz_path.to_str().unwrap(),
+            "-kernel",
-               "-initrd", initrd_path.to_str().unwrap(),
+            vmlinuz_path.to_str().unwrap(),
-               "-append", "console=ttyS0"])
+            "-initrd",
+            initrd_path.to_str().unwrap(),
+            "-append",
+            "console=ttyS0",
+        ])
         .status()
         .context("Failed to launch qemu-system-x86_64")?;
     if status.success() {
         println!("QEMU exited cleanly (timeout or normal exit).");
     } else {
-        println!("QEMU exited with non-zero status (timeout/expected for initrd boot without init).");
+        println!(
+            "QEMU exited with non-zero status (timeout/expected for initrd boot without init)."
+        );
     }
     Ok(())
 }