nix fmt + rustfmt sweep

hive-c0re/src/lifecycle.rs

@@ -873,7 +873,9 @@ async fn run(args: &[&str]) -> Result<()> {
     // in the last few lines.
     let stderr_cmdline = cmdline.clone();
     let stderr_tail: std::sync::Arc<std::sync::Mutex<std::collections::VecDeque<String>>> =
-        std::sync::Arc::new(std::sync::Mutex::new(std::collections::VecDeque::with_capacity(32)));
+        std::sync::Arc::new(std::sync::Mutex::new(
+            std::collections::VecDeque::with_capacity(32),
+        ));
     let stderr_tail_pump = stderr_tail.clone();
     let pump_stderr = tokio::spawn(async move {
         let mut lines = BufReader::new(stderr).lines();