Fix

src/main.rs

@@ -464,6 +464,7 @@ fn sample_pyroscope(pid: remoteprocess::Pid, config: &Config) -> Result<(), Erro
                     short_filename: None,
                     line: 0,
                     locals: None,
+                    is_entry: true
                 });
             }
 
@@ -619,7 +620,7 @@ fn pyspy_main() -> Result<(), Error> {
 
         let mut command = command.args(&subprocess[1..]);
 
-        if config.capture_output {
+        if !config.capture_output {
             command = command
                 .stdin(std::process::Stdio::null())
                 .stdout(process_output.reopen()?)
@@ -656,7 +657,7 @@ fn pyspy_main() -> Result<(), Error> {
 
         // if we failed for any reason, dump out stderr from child process here
         // (could have useful error message)
-        if config.capture_output && (!success || result.is_err()) {
+        if !config.capture_output && (!success || result.is_err()) {
             let mut buffer = String::new();
             if process_output.read_to_string(&mut buffer).is_ok() {
                 eprintln!("{}", buffer);