what does wavy underline mean when there is no diagnostics?

[ssh352]

This is when I open library/alloc/src/str.rs in rust source tree, with lazyvim.
Please advise, thanks!

[mrcjkb]

No idea 🤷

LazyVim comes with a lot of plugins and custom configurations, so you're probably better off asking there.

Possibly related: #311

[ssh352]

Thanks, I'll ask there.