rust dev environment in devshell - with rust-analyzer support

readme.md

usage:

• nix flake new -t "github:numtide/devshell" .
• replace devshell.toml with version from this gist

NOTE: preferrably rust-src would be available as a package so we could use the normal nix packages for cargo, clippy, rustfmt, etc. but since it isn't, this is the easiest way to get a rust environment setup with devshell.

That said, a more "correct" solution would be to use an overlay: https://discourse.nixos.org/t/rust-src-not-found-and-other-misadventures-of-developing-rust-on-nixos/11570

devshell.toml

[devshell]
packages = [
    "rustup",
]

[devshell.startup.rust]
text = """
rustup default stable
rustup component add rust-src
"""