upgrade to hyper/http 1.0

In the process, no longer wait for pending HTTP requests on shutdown.
This just extended the time Moonfire was running without streaming.

server/base/shutdown.rs

@@ -147,6 +147,18 @@ impl<'receiver> Future for ReceiverRefFuture<'receiver> {
     }
 }
 
+impl Drop for ReceiverRefFuture<'_> {
+    fn drop(&mut self) {
+        if self.waker_i == NO_WAKER {
+            return;
+        }
+        let mut l = self.receiver.0.wakers.lock().unwrap();
+        if let Some(wakers) = &mut *l {
+            wakers.remove(self.waker_i);
+        }
+    }
+}
+
 impl Future for ReceiverFuture {
     type Output = ();
 
@@ -156,6 +168,18 @@ impl Future for ReceiverFuture {
     }
 }
 
+impl Drop for ReceiverFuture {
+    fn drop(&mut self) {
+        if self.waker_i == NO_WAKER {
+            return;
+        }
+        let mut l = self.receiver.wakers.lock().unwrap();
+        if let Some(wakers) = &mut *l {
+            wakers.remove(self.waker_i);
+        }
+    }
+}
+
 /// Returns a sender and receiver for graceful shutdown.
 ///
 /// Dropping the sender will request shutdown.