I have a code:

 let mut res = vec![];
                    for mut pipe_cmd in piped {
                        pipe_cmd = pipe_cmd.into_iter().map(|el| interpolate_env(el)).collect();
                        pipe_cmd = expand_wildcard(&cwd, pipe_cmd);
                        pipe_cmd = expand_alias(&aliases, pipe_cmd);
                        res = call_process_piped(pipe_cmd.clone(), &cwd, &res, &child_env).unwrap();
                    }

It's compiled and runs great until call_process_piped returns error. I tried to modify the code like:

 let mut res = vec![];
                    for mut pipe_cmd in piped {
                        pipe_cmd = pipe_cmd.into_iter().map(|el| interpolate_env(el)).collect();
                        pipe_cmd = expand_wildcard(&cwd, pipe_cmd);
                        pipe_cmd = expand_alias(&aliases, pipe_cmd);
                        match call_process_piped(pipe_cmd.clone(), &cwd, res, &child_env) {
                            Ok(next_res) => { res = next_res; }
                            Err(err) => {eprintln!("error {err} in call {pipe_cmd:?}");break}
                        } 
                    }

But it stopped to compile complaining that res is consumed and can't be revived back in the Ok' branch. How can I change the code without changing call_process_piped` signature?

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