Cargo Features

[dependencies]
der-parser = { version = "10.0.0", default-features = false, features = ["std", "as_bitvec", "bigint", "serialize", "unstable"] }
default = std

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

std default serialize?
as_bitvec = bitvec
bigint = num-bigint
serialize = cookie-factory, std
unstable

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.

bitvec as_bitvec?
num-bigint bigint?