use std::fs; use anyhow::{anyhow, Result};use cargo_toml::{Manifest, Workspace};use toml; /// Returns the Cargo workspace.pub fn load_workspace() -> Result<Workspace> {    let workspace_cargo_toml = fs::read_to_string("Cargo.toml")?;    let workspace_cargo_toml: Manifest = toml::from_str(&workspace_cargo_toml)?;     let workspace = workspace_cargo_toml        .workspace        .ok_or_else(|| anyhow!("top-level Cargo.toml is not a Cargo workspace"))?;     Ok(workspace)}