Unexpected panic when going from debug to release build

[ckaran]

I'm using ctor to fake the creation of constants when using noisy_float. I've discovered that my code runs correctly in debug builds, but the same code panics in release builds. I've created a minimal repository here that illustrates the problem.

[jonas-schievink]

Reproduces on 1.33.0 as well. Seems like this code in ctor might be missing a #[used]?

https://github.com/mmastrac/rust-ctor/blob/1fb201c60600ef3e7d3604132dc0d9d390f06372/ctor/src/lib.rs#L203-L206

[jonas-schievink]

Ah, it's already reported there: mmastrac/rust-ctor#15

[jonas-schievink]

Seems like this code in ctor might be missing a #[used]?

Yup, that fixes it, closing in favor of the upstream issue.