The mrustc author confirms that bootstrapping rustc is feasible.  Will
explore that next.

On Fri, Nov 17, 2017 at 5:46 PM Devrandom <c1.devran...@niftybox.net> wrote:

> I made some progress with walking back the Rust version, getting to
> 2016-04-01 nightly (pre-1.8.0).  A rough cut of what I did is here:
>
>
> https://github.com/devrandom/powersoftau/compare/experiment-devrandom-vendor...devrandom:experiment-devrandom-old-compile
>
> This doesn't quite get us to when zcash was announced in January of 2016.
> To make further progress, I will look into backporting the question-mark
> operator from
> https://github.com/rust-lang/rust/commit/210dd611aa1bd80ed2f4e663b3c4b87b3cea069a
>  to
> an earlier nightly.
>
> Will consider Peter's points and respond later.
>
>

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