Tracing: cargo fmt tests/otel_propagation.rs (#143)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

tests/otel_propagation.rs

@@ -47,10 +47,10 @@
 
 use opentelemetry::trace::TracerProvider;
 use opentelemetry_sdk::trace::{InMemorySpanExporter, SdkTracerProvider, SpanData};
+use tracing::Instrument;
 use tracing_subscriber::layer::SubscriberExt;
 use tracing_subscriber::registry::Registry;
 use tracing_subscriber::util::SubscriberInitExt;
-use tracing::Instrument;
 
 const CHILD: &str = "child_in_spawned_task";
 
@@ -126,7 +126,8 @@ fn tracing_opentelemetry_spawn_propagation_matrix() {
         .with_simple_exporter(exporter.clone())
         .build();
     let tracer = provider.tracer("spike-133");
-    let subscriber = Registry::default().with(tracing_opentelemetry::OpenTelemetryLayer::new(tracer));
+    let subscriber =
+        Registry::default().with(tracing_opentelemetry::OpenTelemetryLayer::new(tracer));
     subscriber
         .try_init()
         .expect("global subscriber not yet set");
@@ -232,10 +233,7 @@ fn tracing_opentelemetry_spawn_propagation_matrix() {
                 report.push('\n');
             }
             None => {
-                let line = format!(
-                    "{:<42} NO SPANS EXPORTED\n",
-                    label
-                );
+                let line = format!("{:<42} NO SPANS EXPORTED\n", label);
                 println!("{}", line);
                 report.push_str(&line);
                 report.push('\n');