use flate2::write::GzEncoder; use flate2::Compression; use std::fs::File;

fn main() -> Result<(), std::io::Error> { let tar_gz = File::create("archive.tar.gz")?; let enc = GzEncoder::new(tar_gz, Compression::default()); let mut tar = tar::Builder::new(enc); tar.append_dir_all("backup/logs", "/var/log")?; Ok(()) } 测试案例的时候报错 error[E0433]: failed to resolve: use of undeclared crate or module flate2 --> src\main.rs:1:5 | 1 | use flate2::write::GzEncoder; | ^^^^^^ use of undeclared crate or module flate2

我使用了，没有起作用，求助大神，是我哪里配置的有问题么 D:\rust\work_rust\start_rs>cargo update Updating crates.io index