Cargo Features

[dependencies]
brillig_vm = { version = "0.45.0", default-features = false, features = ["bn254", "bls12_381"] }
default = bn254

The bn254 feature is set by default whenever brillig_vm is added without default-features = false somewhere in the dependency tree.

bn254 default

Enables bn254 of acir

bls12_381

Enables bls12_381 of acir

brillig_vm has 3 features without comments.