Function builder_rustls 

pub fn builder_rustls<B, A>(
    authority: A,
) -> Result<Builder<RustlsConnector<HttpConnector>, B>, Error>
where
    B: HttpBody + Send,
    B::Data: Send,
    Authority: TryFrom<A>,
    <Authority as TryFrom<A>>::Error: Into<Error>,

Available on crate feature rustls and (crate features http1 or http2) only.

Builder of ReusedService, with client::rustls_default().

For the meaning of “authority”, refer to the documentation of Uri.