Without this, you can end up with tokio 0.2.4 and hyper 0.13.5 in your
project, leading to a compile error like this:
```
error[E0599]: no method named `try_recv` found for struct `tokio::sync::mpsc::unbounded::UnboundedReceiver<client::dispatch::Envelope<T, U>>` in the current scope
--> src/client/dispatch.rs:161:26
|
161 | match self.inner.try_recv() {
| ^^^^^^^^ method not found in `tokio::sync::mpsc::unbounded::UnboundedReceiver<client::dispatch::Envelope<T, U>>`
error: aborting due to previous error
For more information about this error, try `rustc --explain E0599`.
error: could not compile `hyper`.
```
When the body type of a `Request` or `Response` implements `HttpBody`,
the `Request` or `Response` itself now implements `HttpBody`.
This allows writing things like `hyper::body::aggregate(req)` instead of
`hyper::body::aggregate(req.into_body())`.
Closes#2067
Adds utility functions to `hyper::body` to help asynchronously
collecting all the buffers of some `HttpBody` into one.
- `aggregate` will collect all into an `impl Buf` without copying the
contents. This is ideal if you don't need a contiguous buffer.
- `to_bytes` will copy all the data into a single contiguous `Bytes`
buffer.
The `hyper::rt::Executor` trait allows defining custom executors to be
used with hyper's `Client` and `Server`.
Closes#1944
BREAKING CHANGE: Any type passed to the `executor` builder methods must
now implement `hyper::rt::Executor`.
`hyper::rt::spawn` usage should be replaced with `tokio::task::spawn`.
`hyper::rt::run` usage should be replaced with `#[tokio::main]` or
managing a `tokio::runtime::Runtime` manually.
The only important trait for a user is the `tower::Service` trait, which
is now available also at `hyper::service::Service`. The other "trait
aliases" are no longer publicly exported, as people thought they had to
implement them.
Also removes dependency on `tower-make`, which is trivial but otherwise
shouldn't affect anyone.
Closes#1959
The `HttpConnector` and `AddrListener` types which make use of
`tokio::tcp` have been made their own optional feature. This allows
using them without requiring the *full* tokio runtime.
The `Accept` trait is used by the server types to asynchronously accept
incoming connections. This replaces the previous usage of `Stream`.
BREAKING CHANGE: Passing a `Stream` to `Server::builder` or
`Http::serve_incoming` must be changed to pass an `Accept` instead. The
`stream` optional feature can be enabled, and the a stream can be
converted using `hyper::server:🉑:from_stream`.
