diff --git a/src/controller.rs b/src/controller.rs
index 6b210e3..b707f4e 100644
--- a/src/controller.rs
+++ b/src/controller.rs
@@ -150,14 +150,11 @@ impl ExperimentController {
             match shell_cmd_result {
                 Ok(shell_cmd) => {
                     log::info!("executing shell cmd {:?}", shell_cmd);
-                    println!("executing shell cmd {:?}", shell_cmd);
                     match Command::new(shell_cmd.cmd).args(shell_cmd.args).status() {
                         Ok(status) => {
                             if status.success() {
-                                println!("cmd exec success");
                                 self.send_completion_success(requestor, action_req);
                             } else {
-                                println!("cmd exec failed with {}", status);
                                 log::warn!("execution of command failed: {}", status);
                                 self.send_completion_failure(
                                     requestor,
@@ -169,7 +166,6 @@ impl ExperimentController {
                         }
                         Err(e) => {
                             log::warn!("execution of command failed with IO error: {}", e);
-                            println!("cmd exec failed with {}", e);
                             self.send_completion_failure(
                                 requestor,
                                 action_req,