Retain the arrays returned from Features's accessors (#68)
Retain the arrays returned from Features's accessors (#68)

* Retain the arrays returned from Features's accessors
9prady9/arrayfire-rust,9prady9/arrayfire-rust,arrayfire/arrayfire-rust,botev/arrayfire-rust,arrayfire/arrayfire-rust,9prady9/arrayfire-rust,9prady9/arrayfire-rust,arrayfire/arrayfire-rust,arrayfire/arrayfire_rust