Can not implement TlsConnector::connect

[kkazuo]

I can not implement TlsConnector::connect because ureq::Error is private.

fn connect(
    &self,
    dns_name: &str,
    io: Box<dyn ureq::ReadWrite>,
) -> Result<Box<dyn ureq::ReadWrite>, ureq::Error> {
    // I can not return ureq::Error because it is private.
    Err(???)
}

How can I create ureq::Error::ErroKind and others ?

[kkazuo]

Related #373

[algesten]

Can you make an std::io::Error and use convert that with .into()?