`repr(align(N))` not respected for uninhabited enum

[theemathas]

I tried this code:

enum Never {}

#[repr(align(4))]
enum Thing { Variant(Never) }

fn main() {
    assert_eq!(1, align_of::<Thing>());
}

I expected the alignment of Thing to be 4, as per the repr attribute, so the assertion should fail. Instead, the program runs without errors.

Meta

Reproducible on the playground with version 1.93.0-nightly (2025-11-22 94b49fd998d6723e0a92)

[theemathas]

Possibly related to #146984

cc @zachs18