Fixup: `filter().is_none()` -> `!any()`
Fixup: `filter().is_none()` -> `!any()`

graydon/rust,graydon/rust,graydon/rust,graydon/rust,aidancully/rust,graydon/rust,aidancully/rust,graydon/rust,aidancully/rust,aidancully/rust,aidancully/rust,aidancully/rust