fix: cache calculation

src/metrics/routing_log.rs

@@ -12,7 +12,9 @@ pub struct RoutingLogWriter {
 impl RoutingLogWriter {
     pub fn create<P: AsRef<Path>>(path: P) -> Result<Self> {
         let f = File::create(path)?;
-        Ok(Self { inner: BufWriter::new(f) })
+        Ok(Self {
+            inner: BufWriter::new(f),
+        })
     }
 
     pub fn write(&mut self, decision: &RouteDecision) -> Result<()> {

src/metrics/timeseries.rs

@@ -19,7 +19,9 @@ pub struct TimeseriesWriter {
 impl TimeseriesWriter {
     pub fn create<P: AsRef<Path>>(path: P) -> Result<Self> {
         let f = std::fs::File::create(path)?;
-        Ok(Self { inner: csv::Writer::from_writer(f) })
+        Ok(Self {
+            inner: csv::Writer::from_writer(f),
+        })
     }
 
     pub fn write(&mut self, row: &TimeseriesRow) -> Result<()> {