rust-analyzer configuration on Helix editor for rustc development

languages.toml

[[language]]
name = "rust"
scope = "source.rust"
injection-regex = "rust"
file-types = ["rs"]
roots = ["Cargo.toml", "Cargo.lock"]
auto-format = true
comment-token = "//"
language-server = { command = "rust-analyzer" }

[language.config]
check.invocationLocation = "root"
check.invocationStrategy = "once"
check.overrideCommand = [
        "python3",
        "x.py",
        "check",
        "--json-output"
]
cargo.buildScripts.overrideCommand = [
        "python3",
        "x.py",
        "check",
        "--json-output"
]
rustfmt.overrideCommand = [
        "./build/host/rustfmt/bin/rustfmt",
        "--edition=2021"
]
linkedProjects = [
        "Cargo.toml",
        "src/tools/x/Cargo.toml",
        "src/bootstrap/Cargo.toml",
        "src/tools/rust-analyzer/Cargo.toml",
        "compiler/rustc_codegen_cranelift/Cargo.toml",
        "compiler/rustc_codegen_gcc/Cargo.toml"
]
cargo.sysrootSrc = "./library"
rustc.source = "./Cargo.toml"
procMacro.server = "./build/host/stage0/libexec/rust-analyzer-proc-macro-srv"
procMacro.enable = true
cargo.buildScripts.enable = true
cargo.buildScripts.invocationLocation = "root"
cargo.buildScripts.invocationStrategy = "once"