{"ast_node_type":"other","tokens":[{"end":45,"kind":"keyword","start":0,"text":"cargo_command.extend_from_slice(command);"}]}
    cargo_command.extend_from_slice(command);
    let mut cargo_command: Vec<&dyn AsRef<OsStr>> = vec![&"cargo", &toolchain_arg];
    callback(&cargo_command, cwd, &env)