Function get_child_err

src/execution/mod.rs:926–931

(mut err: ChildStderr)

}

pub fn get_child_err(mut err: ChildStderr) -> String {
    let mut err_buf = Vec::new();
    err.read_to_end(&mut err_buf).unwrap();
    let err_msg = String::from_utf8_lossy(&err_buf).to_string();
    err_msg
}

// mkdir the directory "corpus" under the same directory of fuzzer.
fn mkdir_fuzzer_corpus(fuzzer_path: &Path) -> PathBuf {