Re: Cargo attemps to download packages already specified as cargo-inputs

[Efraim Flashner <efraim@flashner.co.il>]

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On Sun, Dec 22, 2024 at 12:06:23PM +0100, Gabor Gero via wrote:
> Hello,
> 
<snip> 
> 
> The problem is that if I try to build it via guix build, while all the Rust dependencies get pulled in by guix perfectly fine, once it reaches the build stage, cargo prints the following warning:
> "warning: `/tmp/guix-build-pointersearcher-x-0.7.4-dylib.drv-0/source/.cargo/config` is deprecated in favor of `config.toml`
> note: if you need to support cargo 1.38 or earlier, you can symlink `config` to `config.toml`"
> and attempts to download argh and rayon. What am I doing wrong?

We install the generated config.toml in .cargo/config instead of in
.cargo/config.toml because in the past any file in .cargo/config would
override any settings in the config.toml file.  Sometimes upstream ships
the sources with their settings there and it breaks builds inside Guix.
You can ignore the warning.  I figure I'll move the file to config.toml
when the warning becomes an error.

So you're not doing anything wrong. I should investigate and see if it's
still the case that .cargo/config takes precedence over
.cargo/config.toml or see if there's some flag or something we can be
passing to force reading our config specifically.

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Efraim Flashner   <efraim@flashner.co.il>   אפרים פלשנר
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