Crestle with (old) fast ai

[tabris17]

I fixed it eventually:

Fastai v0.7 install issues thread

hi there, just want to share my finding when running 0.7.0 on crestle. If you have only install fastai (0.7.0) without install torch (0.3.1) before, then it used to using torch 0.3.1 (automatically). but crestle has recently upgraded torch to 0.4.0, and most importantly, the related packages. so you may need to install torch 0.3.1 and torchtext 0.2.3, if you didn’t install torch before.