Unable to start rust-analyzer because of corrupt env vars

[msrd0]

I just updated from the old RLS version to the new version using rust-analyzer. All packages are installed using the only package manager on my system, pacman, and I'm not using rustup. Hence rustc, cargo and rust-analyzer are all installed in /usr/bin and I've set RUST_SRC_PATH=/usr/lib/rustlib/src/rust/library/ to the correct location. This setup works fine when using lsp-mode in emacs, so rust-analyzer is working.

However, in atom it fails to start because it searches for the rust src in ~/.rustup/somewhere which obviously doesn't exist. Also, rust-analyzer's error message hints that RUST_SRC_PATH was set to that nonexistent path. How can I tell the ide-rust package to not corrupt my environment variables? It just needs to keep RUST_SRC_PATH the way it is.

[mmstick]

It also doesn't detect rust-src installs from rustup. I get the same errors about RUST_SRC_PATH pointing to lib/rustlib/src/rust/src when the sources are at lib/rustlib/src/rust/library

[msrd0]

I assume this is the problem:

atom-ide-rust/lib/index.js

Line 190 in 535a584

env.RUST_SRC_PATH = path.join(sysroot, "/lib/rustlib/src/rust/src/")

ide-rust just hardcodes that path no matter what.

[msrd0]

Yep, just tested removing that code block and rust-analyzer does start now.

[flodiebold]

That code setting RUST_SRC_PATH should just be removed, rust-analyzer does the equivalent on the server side anyway (except with the correct path now).