[side-track] Add logging

Author: woojiahao

side_track/verify.py

@@ -54,6 +54,7 @@ def verify(exercise: GitAutograderExercise) -> GitAutograderOutput:
         bug_fix_branch = exercise.repo.branches.branch("bug-fix")
         bug_fix_branch.checkout()
         if len(bug_fix_branch.user_commits) < 2:
+            print(bug_fix_branch.user_commits)
             raise exercise.wrong_answer([MISSING_COMMITS])
 
         # Ensure that they applied the right fix by testing the greet function