Cargo Features

JPush has no features set by default.

[dependencies]
jpush = { version = "0.1.3", features = ["spring-rs"] }
spring-rs = async-trait, spring

Affects config::JPushConfig, jpush::JPushPlugin

Features from optional dependencies

In crates that don't use the dep: syntax, optional dependencies automatically become Cargo features. These features may have been created by mistake, and this functionality may be removed in the future.

async-trait spring-rs?
spring spring-rs?