It seems as though 


// using RHEL 8.7 Server in a VM.

# dnf install -y ansible-core scap-security-guide rhc-worker-playbook
# cd /usr/share/scap-security-guide/ansible

# ANSIBLE_COLLECTIONS_PATH=/usr/share/rhc-worker-playbook/ansible/collections/ansible_collections/ ansible-playbook -c local -i localhost, rhel8-playbook-cis_server_l1.yml

// it seems to mostly work except for the "autofs" stage at the end:

TASK [Unit Socket Exists - autofs.socket] ***************************************************************************************************************************
fatal: [localhost]: FAILED! => {"changed": false, "msg": "Unsupported parameters for (ansible.legacy.command) module: warn. Supported parameters include: _raw_params, _uses_shell, executable, strip_empty_ends, removes, stdin_add_newline, chdir, stdin, argv, creates."}
...ignoring

TASK [Disable socket autofs] ****************************************************************************************************************************************
fatal: [localhost]: FAILED! => {"msg": "The conditional check '\"autofs.socket\" in socket_file_exists.stdout_lines[1]' failed. The error was: error while evaluating conditional (\"autofs.socket\" in socket_file_exists.stdout_lines[1]): 'dict object' has no attribute 'stdout_lines'. 'dict object' has no attribute 'stdout_lines'\n\nThe error appears to be in '/usr/share/scap-security-guide/ansible/rhel8-playbook-cis_server_l1.yml': line 7513, column 7, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n\n    - name: Disable socket autofs\n      ^ here\n"}

PLAY RECAP **********************************************************************************************************************************************************
localhost                  : ok=338  changed=59   unreachable=0    failed=1    skipped=132  rescued=0    ignored=1

// Same command, but -vvv included in the ansible-playbook command:


TASK [Unit Socket Exists - autofs.socket] **************************************
task path: /home/rhuser/rhel8-playbook-cis_server_l1.yml:7489
<localhost> ESTABLISH LOCAL CONNECTION FOR USER: root
<localhost> EXEC /bin/sh -c 'echo ~root && sleep 0'
<localhost> EXEC /bin/sh -c '( umask 77 && mkdir -p "` echo /root/.ansible/tmp `"&& mkdir "` echo /root/.ansible/tmp/ansible-tmp-1674527390.9242747-8968-142812848796448 `" && echo ansible-tmp-1674527390.9242747-8968-142812848796448="` echo /root/.ansible/tmp/ansible-tmp-1674527390.9242747-8968-142812848796448 `" ) && sleep 0'
Using module file /usr/lib/python3.9/site-packages/ansible/modules/command.py
<localhost> PUT /root/.ansible/tmp/ansible-local-3010l7z7b9g9/tmppb4dpl9t TO /root/.ansible/tmp/ansible-tmp-1674527390.9242747-8968-142812848796448/AnsiballZ_command.py
<localhost> EXEC /bin/sh -c 'chmod u+x /root/.ansible/tmp/ansible-tmp-1674527390.9242747-8968-142812848796448/ /root/.ansible/tmp/ansible-tmp-1674527390.9242747-8968-142812848796448/AnsiballZ_command.py && sleep 0'
<localhost> EXEC /bin/sh -c '/usr/libexec/platform-python /root/.ansible/tmp/ansible-tmp-1674527390.9242747-8968-142812848796448/AnsiballZ_command.py && sleep 0'
<localhost> EXEC /bin/sh -c 'rm -f -r /root/.ansible/tmp/ansible-tmp-1674527390.9242747-8968-142812848796448/ > /dev/null 2>&1 && sleep 0'
fatal: [localhost]: FAILED! => {
    "changed": false,
    "invocation": {
        "module_args": {
            "_raw_params": "systemctl list-unit-files autofs.socket",
            "_uses_shell": false,
            "argv": null,
            "chdir": null,
            "creates": null,
            "executable": null,
            "removes": null,
            "stdin": null,
            "stdin_add_newline": true,
            "strip_empty_ends": true,
            "warn": false
        }
    },
    "msg": "Unsupported parameters for (ansible.legacy.command) module: warn. Supported parameters include: stdin, executable, _uses_shell, stdin_add_newline, _raw_params, strip_empty_ends, chdir, creates, removes, argv."
}
...ignoring

TASK [Disable socket autofs] ***************************************************
task path: /home/rhuser/rhel8-playbook-cis_server_l1.yml:7513
fatal: [localhost]: FAILED! => {
    "msg": "The conditional check '\"autofs.socket\" in socket_file_exists.stdout_lines[1]' failed. The error was: error while evaluating conditional (\"autofs.socket\" in socket_file_exists.stdout_lines[1]): 'dict object' has no attribute 'stdout_lines'. 'dict object' has no attribute 'stdout_lines'\n\nThe error appears to be in '/home/rhuser/rhel8-playbook-cis_server_l1.yml': line 7513, column 7, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n\n    - name: Disable socket autofs\n      ^ here\n"
}

PLAY RECAP *********************************************************************
localhost                  : ok=338  changed=59   unreachable=0    failed=1    skipped=132  rescued=0    ignored=1   


// I ran tis command at the end to see what the output might look like w/out Ansible:

# systemctl list-unit-files autofs.socket

0 unit files listed.

@skonish What is the output of "dnf list ansible-core" and "ansible --version"?

Please disregard my earlier comments.

The VM I was using had ansible-engine installed, then I removed it, and added ansible-core instead.
That seemed to impact the playbook execution.

I've installed a fresh VM, and only installed ansible-core, and it runs fine now.

Thanks!

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