clippy crate_in_macro_def tripped by $crate

See tpo/core/arti!1733 (comment 2965924)

Ideally we would somehow stop this from happening, but it's not so straightforward. My naive attempts to add #[allow] to some of the d-a output, without thinking about it too hard, didn't work. @gabi-250 reports that a module-level allow is needed, which is undesriable.