$ sudo apt-get update
$ sudo apt-get install minetest-dbg 

minetest-dbg is installed in your system.

Make ensure the minetest-dbg package were installed using the commands given below,

$ sudo dpkg-query -l | grep minetest-dbg *

You will get with minetest-dbg package name, version, architecture and description in a table

minetest-dbg package basic information: