One would still use `?` in rust regardless of adding context, so it would be strange for someone with rust experience to mention it.

As for the example you gave:

    File::create("foo.txt")?;

If one added context, it would be

    File::create("foo.txt").context("failed to create file")?;

This is using eyre or anyhow (common choices for adding free-form context).

If rolling your own error type, then

    File::create("foo.txt").map_err(|e| format!("failed to create file: {e}"))?;

would match the Go code behavior. This would not be preferred though, as using eyre or anyhow or other error context libraries build convenient error context backtraces without needing to format things oneself. Here's what the example I gave above prints if the file is a directory:

    Error: 
       0: failed to create file
       1: Is a directory (os error 21)

    Location:
       src/main.rs:7