无法构建 Rocket.rs: 给定的版本要求无效

Unable to build Rocket.rs: The given version requirement is invalid

我正在关注 the Rocket getting started guide 以学习 Rust 的 Rocket Web 框架。当我执行 cargo run --verbose 时，出现以下错误：

PS C:\Users\kin\Desktop\hello-rocket> cargo run --verbose
Updating registry `https://github.com/rust-lang/crates.io-index`
failed to parse registry's information for: serde

Caused by:
  the given version requirement is invalid

系统详情

Desktop Environment:   Windows 10
Cargo Version      :   cargo 0.8.0-nightly (28a0cbb 2016-01-17)
rustc Version      :   rustc 1.7.0 (a5d1e7a59 2016-02-29)

Cargo.toml

[package]
name = "hello-rocket"
version = "0.1.0"
authors = ["XXX"]

[dependencies]
rocket = "0.3.5"
rocket_codegen = "0.3.5"

I am following the Rocket getting started guide

very first section of the guide you linked 声明（强调我的）：

Rocket makes abundant use of Rust’s syntax extensions and other advanced, unstable features. Because of this, we’ll need to use a nightly version of Rust.

稍后，它指出：

Rocket always requires the latest version of Rust nightly.

然而你有一个稳定版本的 Rust (1.7.0)；一个此时 22 个月大 (2016-02-29)。 Rust 1.22.1 是当前 Rust 的稳定版本。

本指南继续介绍如何安装最新的 nightly；我建议关注它。