On: Error handling in Rust

[conaclos]

I accept, however this requires to create many types with corresponding implementations (`impl From`, `impl Display`, ...). This is a lot of boilerplate.

[shepmaster → conaclos]

In addition to the sibling comment mentioning thiserror, I also submit my crate SNAFU (linked in my ancestor comment). Reducing some of the boilerplate is a big reason I enjoy using it.

[colanderman → conaclos]

thiserror automates all of that: https://docs.rs/thiserror/latest/thiserror/ Highly recommended.

[conaclos → colanderman]

Sure, but it's an additional dependency. I would prefer it if some of this machinery were added to `core`.