these should be eprintln

src/clients/cache/mod.rs

@@ -65,7 +65,7 @@ pub fn launch(
         ),
         Protocol::Resp => redis::launch_tasks(&mut client_rt, config.clone(), work_receiver),
         protocol => {
-            error!("keyspace is not supported for the {:?} protocol", protocol);
+            eprintln!("keyspace is not supported for the {:?} protocol", protocol);
             std::process::exit(1);
         }
     }

src/clients/pubsub/mod.rs

@@ -198,7 +198,7 @@ fn launch_subscribers(config: &Config, workload_components: &[Component]) -> Opt
             kafka::launch_subscribers(&mut subscriber_rt, config.clone(), workload_components);
         }
         _ => {
-            error!("pubsub is not supported for the selected protocol");
+            eprintln!("pubsub is not supported for the selected protocol");
             std::process::exit(1);
         }
     }

src/clients/store/mod.rs

@@ -38,7 +38,7 @@ pub fn launch(
         Protocol::Momento => momento::launch_tasks(&mut client_rt, config.clone(), work_receiver),
         Protocol::S3 => s3::launch_tasks(&mut client_rt, config.clone(), work_receiver),
         protocol => {
-            error!(
+            eprintln!(
                 "store commands are not supported for the {:?} protocol",
                 protocol
             );