Rust

• Tree Sitter: tree-sitter-rust
• Language Server: rust-analyzer

Target directory

The rust-analyzer target directory can be set in initialization_options:

{
  "lsp": {
    "rust-analyzer": {
      "initialization_options": {
        "rust": {
          "analyzerTargetDir": true
        }
      }
    }
  }
}

A true setting will set the target directory to target/rust-analyzer. You can set a custom directory with a string like "target/analyzer" instead of true.