Cargo Features

[dependencies]
base58ck = { version = "0.1.0", default-features = false, features = ["std"] }
default = std

The std feature is set by default whenever base58ck is added without default-features = false somewhere in the dependency tree.

std default

Enables std of bitcoin_hashes ^0.14.0 and bitcoin-internals ^0.3.0

base58ck has 2 features without comments.