Warning at #[derive(Deserialize)] when compiling without prelude

[TimDiekmann]

Hi,

When using #[derive(Deserialize)] when compiling with #![no_implicit_prelude], there is a warning about "None". This will be hidden, if use std::option::Option::None; is used, but this shouldn't be required.

warning: variable `None` should have a snake case name such as `none`
   --> [...].rs:212:88
    |
212 | #[derive(Serialize, Deserialize)]
    |                     ^^^^^^^^^^^

Update: there is also an error with Option::Some.

[dtolnay]

Thanks! I released 1.0.22 with a fix for at least one bug that would have triggered this. If it still doesn't work with 1.0.22, could you share the full definition of the struct on line 212?

[TimDiekmann]

It's now working, thank you!