Cargo Features

xabc-lib has no features set by default.

[dependencies]
xabc-lib = { version = "0.1.4", features = ["logging"] }
logging = tracing-subscriber

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.

tracing-subscriber logging?

Enables tracing-subscriber

"0.3.18"