Cargo Features

tw_chain has no features set by default.

[dependencies]
tw_chain = { version = "1.1.3", features = ["build_bin"] }
build_bin = colored, rocksdb

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.

colored build_bin?
rocksdb build_bin?

Enables rocksdb ^0.21.0