allocative 0.3.6 doesn't compile on nightly anymore

[DaniPopes]

error[E0119]: conflicting implementations of trait `Allocative` for type `!`
   --> /home/runner/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/allocative-0.3.6/src/impls/std/unsorted.rs:214:1
    |
207 | impl Allocative for Infallible {
    | ------------------------------ first implementation here
...
214 | impl Allocative for ! {
    | ^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `!`

For more information about this error, try `rustc --explain E0119`.

Due to never type being stabilized:

buck2/allocative/allocative/src/impls/std/unsorted.rs

Lines 228 to 233 in 95a3cac

	#[cfg(rust_nightly)]
	impl Allocative for ! {
	fn visit<'a, 'b: 'a>(&self, _visitor: &'a mut Visitor<'b>) {
	match *self {}
	}
	}