GNU bug report logs - #52107
rust-analyzer shipped broken without rust-src

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From: Nicholas von Klitzing <nicholas <at> nvk.pm>
To: 52107 <at> debbugs.gnu.org
Subject: bug#52107: rust-analyzer shipped broken without rust-src
Date: Thu, 25 Nov 2021 14:53:22 +0000

Hello Guix,

The rust-analyzer package depends on having a local copy of the rust compiler (rustc) source code available in order for it to function.
Currently, neither the rust-analyzer nor the rust package include rust-src, which means rust-analyzer is broken by default.

On non-guix systems the rustc source code is usually installed using `rustup component add rust-src`.

The workaround I'm currently using is to run `guix build --source rust` followed by adding `export RUST_SRC_PATH=/home/$user/rustc-$version-src/library` to ~/.profile following every rust upgrade.

rust-analyzer is a crucial tool for many rust developers, so this experience should definitely be improved or at least documented.

I am not very familiar with guix and therefore cannot recommend a good way to solve this.

What would possible solutions to this issue be?

Kind regards,
Nicholas

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