gistfile1.txt

error[E0308]: mismatched types
  --> glutin/src/platform_impl/unix/wayland.rs:53:9
   |
52 |       pub fn new(disp: &Display, cb: ConfigBuilder) -> Result<Box<dyn Iterator<Item = (ConfigAttribs, Config)>>, Error> {
   |                                                        ---------------------------------------------------------------- expected `std::result::Result<std::boxed::Box<(dyn std::iter::Iterator<Item = (config::ConfigAttribs, platform_impl::platform_impl::wayland::Config)> + 'static)>, winit_types::error::Error>` because of return type
53 | /         egl::Config::new(&disp.0, cb, |confs| Ok(confs[0]))
54 | |             .map(|configs| Box::new(configs.map(|(attribs, config)| (attribs, Config(config)))))
   | |________________________________________________________________________________________________^ expected trait `std::iter::Iterator`, found struct `std::iter::Map`
   |
   = note: expected enum `std::result::Result<std::boxed::Box<(dyn std::iter::Iterator<Item = (config::ConfigAttribs, platform_impl::platform_impl::wayland::Config)> + 'static)>, _>`
              found enum `std::result::Result<std::boxed::Box<std::iter::Map<std::boxed::Box<dyn std::iter::Iterator<Item = (config::ConfigAttribs, api::egl::Config)>>, [closure@glutin/src/platform_impl/unix/wayland.rs:54:49: 54:94]>>, _>`