Error while Rasa demo

i am trying to implement Rasa demo on Googlecolab but error occurred while Training Rasa core :

2018-12-13 11:33:40 DEBUG rasa_core.featurizers - Created 321827 action examples. tcmalloc: large alloc 1861451776 bytes == 0xb3890000 @ 0x7fcf78e5e1e7 0x7fcf743429a1 0x7fcf743a5963 0x7fcf743a8e14 0x7fcf743a9355 0x7fcf74440341 0x5030d5 0x506859 0x504c28 0x502540 0x502f3d 0x506859 0x502209 0x502f3d 0x506859 0x504c28 0x501b2e 0x591461 0x59ebbe 0x507c17 0x504c28 0x501b2e 0x591461 0x59ebbe 0x507c17 0x504c28 0x501b2e 0x591461 0x59ebbe 0x507c17 0x504c28 Makefile:22: recipe for target ‘train-core’ failed make: *** [train-core] Killed

please help

most likely this happens because the notebook is running out of memory maybe you are using to much data or a language model that is to large?

Thank you for the answer .

any solution for this?