diff --git a/guest/authfs_service/src/authfs.rs b/guest/authfs_service/src/authfs.rs
index cfd5766..f2638c2 100644
--- a/guest/authfs_service/src/authfs.rs
+++ b/guest/authfs_service/src/authfs.rs
@@ -89,12 +89,9 @@
             &config.outputDirFdAnnotations,
             debuggable,
         )?;
-        wait_until_authfs_ready(&child, &mountpoint).map_err(|e| {
-            match child.wait() {
-                Ok(status) => debug!("Wait for authfs: {}", status),
-                Err(e) => warn!("Failed to wait for child: {}", e),
-            }
-            e
+        wait_until_authfs_ready(&child, &mountpoint).inspect_err(|_| match child.wait() {
+            Ok(status) => debug!("Wait for authfs: {}", status),
+            Err(e) => warn!("Failed to wait for child: {}", e),
         })?;
 
         let authfs = AuthFs { mountpoint, process: child };
diff --git a/libs/libfdt/src/libfdt.rs b/libs/libfdt/src/libfdt.rs
index b2250f5..6869af6 100644
--- a/libs/libfdt/src/libfdt.rs
+++ b/libs/libfdt/src/libfdt.rs
@@ -292,7 +292,7 @@
         // SAFETY: Accesses (read-only) are constrained to the DT totalsize.
         let ret = unsafe { libfdt_bindgen::fdt_find_max_phandle(fdt, &mut phandle) };
 
-        FdtRawResult::from(ret).try_into()?;
+        () = FdtRawResult::from(ret).try_into()?;
 
         phandle.try_into()
     }
@@ -390,7 +390,7 @@
             // SAFETY: Accesses are constrained to the DT totalsize (validated by ctor).
             unsafe { libfdt_bindgen::fdt_setprop_placeholder(fdt, node, name, len, &mut data) };
 
-        FdtRawResult::from(ret).try_into()?;
+        () = FdtRawResult::from(ret).try_into()?;
 
         get_mut_slice_at_ptr(self.as_fdt_slice_mut(), data.cast(), size).ok_or(FdtError::Internal)
     }