err

error: cannot infer an appropriate lifetime
  --> examples/client.rs:84:20
   |
84 |     async fn start(&self) -> io::Result<()> {
   |                    ^^^^^ ...but this borrow...
...
90 |         let _ = smol::Task::spawn(self.wait_shutdown_signal(stopped.clone()));
   |                 ----------------- this return type evaluates to the `'static` lifetime...
   |
note: ...can't outlive the lifetime `'_` as defined on the method body at 84:20
  --> examples/client.rs:84:20
   |
84 |     async fn start(&self) -> io::Result<()> {
   |                    ^

error: aborting due to previous error; 1 warning emitted