error[E0046]: not all trait items implemented, missing: `get_inflight_fd`, `set_inflight_fd`
   --> /home/hvub/.cargo/git/checkouts/vhost-user-backend-0d66fc5baaf39798/ddc7dd5/src/lib.rs:556:1
    |
556 | impl<S: VhostUserBackend> VhostUserSlaveReqHandlerMut for VhostUserHandler<S> {
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ missing `get_inflight_fd`, `set_inflight_fd` in implementation
    |
    = help: implement the missing item: `fn get_inflight_fd(&mut self, _: &VhostUserInflight) -> std::result::Result<(VhostUserInflight, i32), vhost::vhost_user::Error> { todo!() }`
    = help: implement the missing item: `fn set_inflight_fd(&mut self, _: &VhostUserInflight, _: File) -> std::result::Result<(), vhost::vhost_user::Error> { todo!() }`

error: aborting due to previous error

For more information about this error, try `rustc --explain E0046`.
error: could not compile `vhost-user-backend`

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