Cargo Features

JMX has no features set by default.

[dependencies]
jmx = { version = "0.2.1", features = ["thread-support"] }
thread-support = crossbeam-channel, serde_json

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.

crossbeam-channel thread-support?

Enables crossbeam-channel ^0.4.2

serde_json thread-support?