rust - 即使src/main.rs可用， cargo 也不会生成

Question

我正在尝试使用 cargo build 。以下是项目结构

tree
.
├── Cargo.toml
└── src
    └── main.rs

Cargo.toml的内容

[package]
name = "server"
version = "0.1.0"
authors = ["Lokanath Mohanty <lokanath.mohanty@adcolony.com>"]
edition = "2018"

# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

[dependencies]

src/main.rs的内容

use std::io::{ErrorKind, Read, Write};
use std::net::TcpListener;
use std::sync::mpsc;
use std::thread;
use std::time::Duration;

const LOCAL_IP: &str = "127.0.0.1:6001";
const MSG_SIZE: usize = 32;


fn main() {
    ...
}

我收到以下错误-

error: failed to parse manifest at `/home/debashishc/Downloads/Cargo.toml`

Caused by:
  no targets specified in the manifest
  either src/lib.rs, src/main.rs, a [lib] section, or [[bin]] section must be present

Answer 1

Cargo查找并尝试parse Cargo.toml in parent directories，因为它检查您的箱子是否是较大workspace的一部分。

从父目录中删除损坏的Cargo.toml。或者，将您的 crate 的Cargo.toml用作工作区，以阻止 cargo 进一步搜索。