Extract structured errors on run and submit

app/controllers/concerns/submission_scoring.rb

@@ -9,6 +9,14 @@ module SubmissionScoring
         assessment = assessor.assess(output)
         passed = ((assessment[:passed] == assessment[:count]) and (assessment[:score] > 0))
         testrun_output = passed ? nil : output[:stderr]
+        if !testrun_output.blank?
+          submission.exercise.execution_environment.error_templates.each do |template|
+            pattern = Regexp.new(template.signature).freeze
+            if pattern.match(testrun_output)
+              StructuredError.create_from_template(template, testrun_output)
+            end
+          end
+        end
         Testrun.new(submission: submission, file: file, passed: passed, output: testrun_output).save
         output.merge!(assessment)
         output.merge!(filename: file.name_with_extension, message: feedback_message(file, output[:score]), weight: file.weight)