Minimum required CMake version is not 3.13.1
We have changed the minimal requirement version of cmake to 3.13.1 meaning that you are required to update cmake on your system to build Zephyr.
Please follow the documentation below to satisfy the requirements:
The reasons for a recent version of CMake is explain here:
We have a few requests to include CMake in the SDK, this is something we are considering in the new SDK based on crosstools-ng.