Unknown user after flash "travis"

I downloaded pwnagotchi-raspbian-lite-v1.5.5.zip from https://github.com/evilsocket/pwnagotchi/releases.

After flashing the .img to my SDcard and booting in my Raspberry Pi Zero W, there is a user named "travis" that appears at /home/travis.

Its only content are a tmp file inside .ansible at: ~/home/travis/.ansible/tmp

But i cant get into the tmp file. "cd tmp" returns permission denial, "sudo cd tmp" returns a error the the command "cd" is not found.

What is this, why is it happening... Did a contributor leave a user on the .img, or should i look into this further?