Cargo Features

[dependencies]
mysql-client-bindings-rs = { version = "0.2.0", default-features = false, features = ["mysql", "mariadb", "fresh_bindings"] }
default = mysql

The mysql feature is set by default whenever mysql-client-bindings-rs is added without default-features = false somewhere in the dependency tree.

mysql default
mariadb
fresh_bindings = bindgen

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.

bindgen build fresh_bindings?

Enables bindgen ^0.53.1