Cargo Features

botcore has no features set by default.

[dependencies]
botcore = { version = "1.0.4", features = ["metrics", "tracing-subscriber"] }
metrics = once_cell, prometheus

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 implicit feature

Enables tracing-subscriber

tracing-subscriber:

Utilities for implementing and composing tracing subscribers

once_cell metrics?
prometheus metrics?