I want to shift completely to the new borrowck when it releases and not run the old one at all. Will there be any flags I can set for my projects to achieve this?
they can run
#![feature(nll)] still, on nightly, to achieve that effect
But -- if I understand correctly -- you can also get the same effects with e.g.
#![deny(warnings)] on 2018 edition
not entirely true
but mostly true
if you use e.g.
#![feature(nll)] we do disable some region error messages that would otherwise be hard errors
so basically some things might compile that wouldn't with