  * provide feature "rustls-ring-webpki" when needed crate is in Debian
    * webpki-roots
  * provide features "rustls-aws-lc-native"
    and "rustls-aws-lc-platform-verifier"
    when needed crate is in Debian
    * aws-lc-rs
  * provide feature "rustls-aws-lc-webpki" when needed crates are in Debian
    * aws-lc-rs
    * webpki-roots
