Disable SSH login attempt at the end of the up process

I have this issue that I would like to mitigate/close.

In practice the box I am creating with Vagrant is uncommon. It does not have an OS and for this reason SSH won’t work. It will never work. I would like to disable the attempt from Vagrant to SSH inside the server in order to end the up command without having the:

Warning: Authentication failure. Retrying…

Can I do it!?