Problem

We need a better error handling method to prevent from being bothered when introducing new error types.

Status

Merged: https://github.com/proot-me/proot-rs/pull/17

Our goal

• [x] handle all Error types automatically
• [x] get_errno()
  • [x] (maybe) set errno
• [x] with context message
• [ ] (maybe) error kind enum
• [x] (maybe) Error::source

Options

• [ ] extend anyhow
• [ ] thiserror
• [ ] something like https://doc.rust-lang.org/src/std/io/error.rs.html#58-60
• [x] some thing like anyhow