There's rust-postgres, which is just a driver as you are looking for. It's not exactly what I'd call mature. Diesel is more mature, but it is an ORM, albeit on

There's rust-postgres, which is just a driver as you are looking for. It's not exactly what I'd call mature. Diesel is more mature, but it is an ORM, albeit one with significantly less "magic", so maybe you'll like it more.