From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jelle Licht <jlicht@fsfe.org>
Subject: Re: guix import crate wraps #:cargo-inputs twice
Date: Tue, 02 Jul 2019 10:05:21 +0200
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To: Ivan Petkov <ivanppetkov@gmail.com>, Arne Babenhauserheide <arne_bab@web.de>
Cc: Guix-devel <guix-devel@gnu.org>

Ivan Petkov <ivanppetkov@gmail.com> writes:

> [...]
> I tried building some of the crates and most of the errors I saw were som=
ething
> like =E2=80=9Cfailed to select a version for the requirement `foo =3D ^0.6
> candidate versions found which didn=E2=80=99t match: 0.8.5=E2=80=9D.
>
> Please note that the crate importer always picks the latest version avail=
able
> on crates.io <http://crates.io/> but existing crates may depend on an ear=
lier version. In this case
> you=E2=80=99ll need to manually pull in the right version and update the =
package definition
> of the consumer (ideally we can update the importer to be smart about the=
se kinds
> of imports, but this hasn=E2=80=99t been done yet!).

Shameless plug; I have some guile code lying around for dealing
with exactly these problems; `guile-semver'[1] might give you a start
for handling these cases.
>
> Hope this helps,
> =E2=80=94Ivan

[1]: https://notabug.org/jlicht/guile-semver