[vvanders]

So freaking excited about impl trait.

This and not being able to do paramterized array sizes for things like SoA, AoSoA where the two things that I feel like were missing from Rust. Really happy to see the first landing(and I understand work is going on for the second).

[steveklabnik]

There was some sort of SoA derive going around, I thought. Regardless, you’re right; we’re hoping const generics lands in nightly this year and stabilizes early next year.