Progress bar in CI job

Hi. I tried to use Fuubar RSpec formatter. But it has some problems with non-tty (as I can see).

The formatter relies on ruby-progressbar. It has wiki page about inability to work properly on non-tty outputs.

I found #1021 (closed) but it seems it doesn't work for me

Is there anything I can do to force tty and get progress bar output on the same line?

Thank you.