我正在尝试使用稳定版本rustc来编译火箭网络应用程序。rocketcrate 编译得很好，但我想使用rocket_contrib. 我的Cargo.toml文件如下所示：
[dependencies]
rocket = "0.5.0-rc.1"
[dependencies.rocket_dyn_templates]
version = "0.1.0-rc.1"
features = ["handlebars"]
[dependencies.rocket_contrib]
version = "0.4.10"
default-features = false
features = ["serve"]
当我尝试运行时出现以下错误cargo build：
Error: Pear requires a 'dev' or 'nightly' version of rustc.
Installed version: 1.52.1 (2021-05-09)
Minimum required: 1.31.0-nightly (2018-10-05)