Miss Dada  🏳️‍⚧️

You need want this in your Cargo.toml: [profile.release.build-override] opt-level = 0 (or any variant of this that fits your crate)

I'm a bit confused. How does that specify overrides for only one crate?

I'm confused by the question. It specifies the override for all build dependencies, not just one crate.

Proc macros aren't added as build dependencies though

The docs specifically say it also affects proc macros. See https://doc.rust-lang.org/cargo/reference/profiles.html#overrides … third code block.

Thanks. Neither the release post nor any examples I'd seen linked to this so I was unclear

It wasn't easy to find. I really hope this becomes more visible, or maybe even the default setting. I'd be curious (maybe scared if I had to work with it) if there was a build that would run faster with optimized build scripts and proc macros.