Unclear how to wrap around errors

[Binero]

Is there a way to wrap around other errors, and have them as causes? .context adds context to an error, but it loses type-ness. Is there a way to add a variant to your failure that wraps around other error?

[mthiesen]

I am missing this as well. I would really like to replicate the chain_err behavior of error-chain. context seems to be the closest there is, with the downside that the type information is lost.