New, updated opentelemetry tracing exporter.

src/main.rs

@@ -14,7 +14,19 @@ use crate::init_tracing::init_telemetry;
 use crate::init_tracing::shutdown_telemetry;
 mod init_tracing;
 
+#[cfg(not(feature = "tracing"))]
 fn main() -> Result<(), Box<dyn std::error::Error>> {
+    main_body()
+}
+
+#[cfg(feature = "tracing")]
+fn main() -> Result<(), Box<dyn std::error::Error>> {
+    let rt = tokio::runtime::Runtime::new()?;
+    let result = rt.block_on(async { main_body() });
+    result
+}
+
+fn main_body() -> Result<(), Box<dyn std::error::Error>> {
     init_telemetry()?;
     run_compare(
         std::env::args()