Error

gistfile1.txt

  --> src/main.rs:49:19
   |
49 |     type Future = future::Future<Output = Result<Self::Response, Self::Error>>;
   |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn future::Future<Output = Result<Self::Response, Self::Error>>`
   |
   = note: `#[warn(bare_trait_objects)]` on by default

error[E0277]: the size for values of type `(dyn std::future::Future<Output = std::result::Result<HelloWorld, std::io::Error>> + 'static)` cannot be known at compilation time      --> src/main.rs:49:19
    |
49  |     type Future = future::Future<Output = Result<Self::Response, Self::Error>>;
    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
    |
   ::: /home/alecm/.cargo/registry/src/github.com-1ecc6299db9ec823/tower-service-0.3.0/src/lib.rs:207:5
    |
207 |     type Future: Future<Output = Result<Self::Response, Self::Error>>;
    |     ------------------------------------------------------------------ required by this bound in `tower_service::Service`
    |
    = help: the trait `std::marker::Sized` is not implemented for `(dyn std::future::Future<Output = std::result::Result<HelloWorld, std::io::Error>> + 'static)`
    = note: to learn more, visit <https://doc.rust-lang.org/book/ch19-04-advanced-types.html#dynamically-sized-types-and-the-sized-trait>

error: aborting due to previous error; 2 warnings emitted

For more information about this error, try `rustc --explain E0277`.
error: could not compile `graphserver`.