why wouldn't the file specificed by `creates` be created when the command runs successfully?

import_with_s3.yml

---

  - name: run aws-cli script to fetch csv file
    command: /home/{{ deploy_user }}/env/{{ app }}/bin/aws s3 cp {{ s3_download_path }} {{ csv_import_location }}
    args:
      creates: /var/www/my_app/data_imports/{{ csv_to_fetch }}.downloaded.txt
    # async: 1800
    # poll: 10
    sudo: no