Deprecated Code Report

php drupal-check.phar modules/contrib/taxonomy_formatter/
 2/2 [▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓] 100%

 ------ -------------------------------------------------------------------------------------- 
  Line   src/Plugin/Field/FieldFormatter/TaxonomyTermReferenceCsv.php                          
 ------ -------------------------------------------------------------------------------------- 
  139    Call to deprecated method checkPlain() of class Drupal\Component\Utility\SafeMarkup.  
  139    Call to method checkPlain() of deprecated class Drupal\Component\Utility\SafeMarkup.  
  141    Call to deprecated method checkPlain() of class Drupal\Component\Utility\SafeMarkup.  
  141    Call to method checkPlain() of deprecated class Drupal\Component\Utility\SafeMarkup.  
  149    Call to deprecated method checkPlain() of class Drupal\Component\Utility\SafeMarkup.  
  149    Call to method checkPlain() of deprecated class Drupal\Component\Utility\SafeMarkup.  
  163    Call to deprecated method checkPlain() of class Drupal\Component\Utility\SafeMarkup.  
  163    Call to method checkPlain() of deprecated class Drupal\Component\Utility\SafeMarkup.  
 ------ -------------------------------------------------------------------------------------- 

                                                                                                                        
 [ERROR] Found 8 errors