Cargo Features

[dependencies]
rtltcp = { version = "0.1.1", default-features = false, features = ["daemon_systemd"] }
default = daemon_systemd

The daemon_systemd feature is set by default whenever rtltcp is added without default-features = false somewhere in the dependency tree.

daemon_systemd default = listenfd, systemd

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.

listenfd daemon_systemd

Enables listenfd ^0.5

systemd daemon_systemd