Emit Errors in CommandRunner

src/command_runner.rs

@@ -63,13 +63,9 @@ impl CommandRunner for StdCommandRunner {
       .stdin(Stdio::piped())
       .stdout(Stdio::piped())
       .stderr(Stdio::piped())
-      .spawn()
-      .expect("Failed to spawn child process");
+      .spawn()?;
     let stdin = child.stdin.as_mut().expect("Failed to open stdin");
-    stdin
-      .write_all(input)
-      .await
-      .expect("Failed to write to stdin");
+    stdin.write_all(input).await?;
     let res = child.wait_with_output().await;
     //println!("{:?}", res);
     #[allow(clippy::let_and_return)]