When we first got her Finnegan pooped in her crate but she doesn't anymore. I think it was just happening until her schedule got adjusted. At the rescue she was used to being crated at night but was in an outdoor run during the day so she was used to being able to poop during the day. After a little while the crate pooping stopped.
I have to say though, she was pretty talented at shooting her poop outside the crate through the metal bars.