bug#35519: guix master 4de63cf3fc0a831d75cb507456821104f24800c2: rust 1.19.0 build failure on i686-linux

[Danny Milosavljevic]

Hi,

On Fri, 18 Dec 2020 16:19:10 +0100
Mathieu Othacehe <othacehe@gnu.org> wrote:

> The CI is spending a considerable amount of time trying to build Rust
> packages for "i686-linux". As this is currently broken, what do you
> think about applying the attached patch?

Sure, for the time being.

But seriously, mrustc supports a lot of other architectures (including
defining custom architectures in config), and also can bootstrap Rust
1.29.0 directly.  It's better to just update mrustc.

(Marius Bakke already tried to integrate the mrustc update to
core-updates--not sure what the roadblock was.  Even if there was a
roadblock, mrustc upstream was committed to 7 days ago--maybe the roadblock
is gone now ?)

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