docker_login until failures

gistfile1.txt

# Task
- name: "Log into hub.docker.com"
  become: yes
  become_user: automation
  docker_login:
    username: "{{ docker_hub_username }}"
    password: "{{ docker_hub_password }}"
    email: "{{ docker_hub_email }}"
  register: docker_login_result
  # until: docker_login_result.login_result.Status == "Login Succeeded"
  until: docker_login_result.find("Login Succeeded") != -1
  retries: 10
  delay: 15
  
  # On success
  changed: [host.domain.com] => {
    "attempts": 1, 
    "changed": true, 
    "invocation": {
        "module_args": {
            "api_version": null, 
            "cacert_path": null, 
            "cert_path": null, 
            "config_path": "~/.docker/config.json", 
            "debug": false, 
            "docker_host": null, 
            "email": "user@domain.com", 
            "filter_logger": false, 
            "key_path": null, 
            "password": "VALUE_SPECIFIED_IN_NO_LOG_PARAMETER", 
            "reauthorize": false, 
            "registry_url": "https://index.docker.io/v1/", 
            "ssl_version": null, 
            "state": "present", 
            "timeout": null, 
            "tls": null, 
            "tls_hostname": null, 
            "tls_verify": null, 
            "username": "user"
        }
    }, 
    "login_result": {
        "IdentityToken": "", 
        "Status": "Login Succeeded"
    }
}
  
  
  # On failure
  
  fatal: [hostname.domain.com]: FAILED! => {
    "failed": true, 
    "msg": "The conditional check 'docker_login_result.login_result.Status == \"Login Succeeded\"' failed.
    The error was: error while evaluating conditional (docker_login_result.login_result.Status == \"Login Succeeded\"):
    'dict object' has no attribute 'login_result'"
}