Cargo Features

arch_sdk has no features set by default.

[dependencies]
arch_sdk = { version = "0.5.14", features = ["fuzzing"] }
fuzzing = libfuzzer-sys

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.

libfuzzer-sys fuzzing?