That job will be the making of you.
You have the makings of a fine teacher.
An experience that will be the making of him.
Soon (30 years?) we'll be making complete DNA and life in reverse, growing food that only reversed creatures cn eat. - Earliest Usenet use via Google Groups - fa.human-nets, 10 May 1981 09:16-EDT, Robert Elton Maas.
As a child he didn't seem like a genius in the making.
An example of making is knitting a scarf.