Cargo Features

cupido has no features set by default.

[dependencies]
cupido = { version = "0.3.5", features = ["vendored-openssl"] }

for cross: https://github.com/cross-rs/cross/wiki/FAQ#openssl-is-not-installed

vendored-openssl

Enables vendored-openssl of git2 ^0.18.1

cupido has 1 feature without comment.