Cargo Features

Syndicate has no features set by default.

[dependencies]
syndicate = { version = "0.42.0", features = ["vendored-openssl"] }
vendored-openssl

Enables vendored of openssl

Only used for vendored-openssl, which in turn is being used for cross-builds

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.

openssl vendored-openssl?