Cargo Features

[dependencies]
franklin-crypto = { version = "0.30.6", default-features = false, features = ["multicore", "plonk", "allocator"] }
default = allocator, multicore, plonk

These default features are set whenever franklin-crypto is added without default-features = false somewhere in the dependency tree.

multicore default

Enables multicore of zksync_bellman

plonk default

Enables plonk of zksync_bellman

allocator default

Enables allocator of zksync_bellman

franklin-crypto has 4 features without comments.