code: protected function buildInConsole()
      {
          if (!$this->stats['inConsole']) {
              return '';
          }
          $haveFatal = isset($this->stats['counts']['fatal']);
          if ($haveFatal) {
              $countNonFatal = $this->stats['inConsole'] - $this->stats['counts']['fatal']['inConsole'];
              $header = \sprintf(
                  'There %s %d additional %s',
                  $countNonFatal === 1 ? 'was' : 'were',
                  $countNonFatal,
                  $countNonFatal === 1 ? 'error' : 'errors'
              );
          } elseif ($this->stats['inConsoleCategories'] === 1) {
              return $this->buildInConsoleOneCat();
          } else {
              $header = 'There were '.$this->stats['inConsole'].' errors';
          }
          $html = '<h3>'.$header.':</h3>'."\n";
          $html .= '<ul class="list-unstyled indent">';
          foreach ($this->stats['counts'] as $category => $a) {
              if (!$a['inConsole'] || $category == 'fatal') {
                  continue;
              }
              $html .= '<li class="error-'.$category.'">'.$category.': '.$a['inConsole'].'</li>';
          }
          $html .= '</ul>';
          return $html;
      }
docs: Returns summary for errors that were logged to console (while collect = true)
  
  @return string