Joshua Maleszewski

whenever I run `cargo build` I get these errors ``` error[E0658]: use of unstable library feature 'str_strip': newly added --> src/lib/fd.rs:166:47 | 166 | ... let inode = s.strip_prefix("socket:[").unwrap().strip_suffix("]").unwrap() |...

There' s a problem, maybe. In `material.rs`, line 349, the type `Opaque3d` now has an `asset_id` field. I set it to `AssetId::default()`, which seems wrong, as that would point to...

Expanded #[serder(default = ...)] capabilities.

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### Before Giving a field a default value that isn't the same as that type's `Default` required users to define a function for each field. ``` #[derive(Serialize, Deserialize)] pub struct...