I can reproduce the can crush sound on inclines pretty regularly. MY17 DCT about 700 miles on it. Don't notice the car feeling unsettled when it happens, just the horrible noise. Seems to happen only in Sport + mode I think....
Two video I took tonight of the sound, one going uphill, one going downhill. Sorry for the camera work I was just trying to get the sound. On the downhill looks like I was in 2nd and took my foot off the gas before it happened.