Using `reqwest` with default-features enabled will enable the
`default-tls`, which in turn will enable the `native-tls` feautre which
will result in an attempt to compile against OpenSSL [0]. If one wants
to use `mastodon-async` without depending on OpenSSL, the default
features for `reqwest` must be disabled.
The default features for `mastodon-async` will enable
`reqwest/default-tls`, so the default behaviour won't change, but now it
is possible to declare the dependency on `mastodon-async` with default
features disabled and the `rustls-tls` feature enabled, allowing to
compile without a dependency on OpenSSL.
[0]: e02df1f448/Cargo.toml (L30)
Valentin Brandl
D. Scott Boggs
Dym Sohin