message: Fix case where the baseline directory name was not used.
diff: @@ -34,7 +34,7 @@ pub(crate) fn common(
  );
  let (iters, times): (Vec<f64>, Vec<f64>) = fs::load(&sample_dir)?;
  - let estimates_file = &format!("{}/{}/base/estimates.json", criterion.output_directory, id.as_directory_name());
  + let estimates_file = &format!("{}/{}/{}/estimates.json", criterion.output_directory, id.as_directory_name(), criterion.baseline_directory);
  let base_estimates: Estimates = fs::load(&estimates_file)
  .map_err(|e| e.context(format!("Failed to load {}!", &estimates_file)))?;
  