{"ast_node_type":"variable","tokens":[{"end":64,"kind":"keyword","start":0,"text":"if"}]}
                if let Some(sysroot_root) = &self.sysroot_root {
                    toolchain::command(Tool::Cargo.path(), &*self.root, &options.extra_env);
                    if !options.extra_env.contains_key("RUSTUP_TOOLCHAIN")