Improve logging

[rbehjati]

Currently, we log errors from running the command (exec.Command) in a tempfile.
These files are difficult to access on GitHub, in case, a CI step fails.

Should we instead log everything to console?

The problem with that is that the logs may get very messy and difficult to use.

[jul-sh]

I think this is a good idea, and would also simplify our code substantially. If messy logs an issue we can consider adding a "verbose" flag?

[rbehjati]

Yes. I think a verbose flag would be a good idea :) Not sure how to implement it nicely though.