diff --git a/runtime/src/recovery_flow.rs b/runtime/src/recovery_flow.rs
index 7a96d7e583..711de0a30b 100644
--- a/runtime/src/recovery_flow.rs
+++ b/runtime/src/recovery_flow.rs
@@ -65,7 +65,7 @@ impl RecoveryFlow {
 
         // notify MCU that it can boot
         // TODO: get the correct value for this
-        dma_recovery.set_mci_flow_status(123);
+        dma_recovery.set_mci_flow_status(123)?;
 
         // we're done with recovery
         dma_recovery.set_recovery_status(DmaRecovery::RECOVERY_STATUS_SUCCESSFUL)?;
diff --git a/sw-emulator/lib/bus/src/bus.rs b/sw-emulator/lib/bus/src/bus.rs
index ac64450d1d..5684cfb75d 100644
--- a/sw-emulator/lib/bus/src/bus.rs
+++ b/sw-emulator/lib/bus/src/bus.rs
@@ -17,12 +17,14 @@ use crate::Event;
 use caliptra_emu_types::{RvAddr, RvData, RvSize};
 use std::{rc::Rc, sync::mpsc};
 
+#[allow(unused)]
 pub trait EventListener {
     fn incoming_event(&mut self, _event: Rc<Event>) {
         // By default, do nothing
     }
 }
 
+#[allow(unused)]
 pub trait EventSender {
     fn register_outgoing_events(&mut self, _sender: mpsc::Sender<Event>) {
         // By default, do nothing