how to work around "Your device does not qualify for bootloader unlocking
You need to get the "cid" of the device by doing

./adb reboot bootloader
sudo ./fastboot getvar all


In my case it gives

(bootloader) cid: 0x0001


and as you can see at the official website, Lenovo/Motorola says "Your device is NOT eligible for bootloader unlock". You buy their phone and they still control it. Wait, what?