475     ) -> std::result::Result<(Box<dyn StreamControl>, Box<dyn PlaybackBufferStream>), BoxError>  in new_pinned_playback_stream()
478             Box::new(NoopStreamControl::new()),  in new_pinned_playback_stream()
479             Box::new(self.create_stream::<CrasPlaybackData>(  in new_pinned_playback_stream()
510     ) -> std::result::Result<(Box<dyn StreamControl>, Box<dyn CaptureBufferStream>), BoxError> {  in new_pinned_capture_stream()
512             Box::new(NoopStreamControl::new()),  in new_pinned_capture_stream()
513             Box::new(self.create_stream::<CrasCaptureData>(  in new_pinned_capture_stream()
562     ) -> std::result::Result<(Box<dyn StreamControl>, Box<dyn PlaybackBufferStream>), BoxError>  in new_playback_stream()
565             Box::new(NoopStreamControl::new()),  in new_playback_stream()
566             Box::new(self.create_stream::<CrasPlaybackData>(  in new_playback_stream()
584     ) -> std::result::Result<(Box<dyn StreamControl>, Box<dyn CaptureBufferStream>), BoxError> {  in new_capture_stream()
587                 Box::new(NoopStreamControl::new()),  in new_capture_stream()
588                 Box::new(self.create_stream::<CrasCaptureData>(  in new_capture_stream()
599                 Box::new(NoopStreamControl::new()),  in new_capture_stream()
600                 Box::new(NoopCaptureStream::new(  in new_capture_stream()
626     ) -> std::result::Result<Box<dyn ShmStream>, BoxError> {
628             return Ok(Box::new(NullShmStream::new(
691                 return Ok(Box::new(stream));