message: test(ckb-test): print spec running time
diff: @@ -5,6 +5,7 @@ use clap::{value_t_or_exit, App, Arg};
  use log::info;
  use std::collections::HashMap;
  use std::mem;
  +use std::time::Instant;
  fn main() {
  let log_config = Config {
  @@ -58,8 +59,14 @@ fn main() {
  for (spec_name, spec) in specs {
  info!("Running {}", spec_name);
  + let now = Instant::now();
  let net = spec.setup_net(&binary, start_port);
  spec.run(net);
  + info!(
  + "Complete {} in {} seconds",
  + spec_name,
  + now.elapsed().as_secs()
  + );
  }
  }
  