Cargo Features

[dependencies]
sp-crypto-hashing = { version = "0.1.0", default-features = false, features = ["std"] }
default = std

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

std default

Enables std of blake2b_simd, byteorder, digest, sha2, sha3, and twox-hash ^1.6.3

sp-crypto-hashing has 2 features without comments.