diff --git a/test_infra/src/lib.rs b/test_infra/src/lib.rs
index 79210e9eb..35cf35b49 100644
--- a/test_infra/src/lib.rs
+++ b/test_infra/src/lib.rs
@@ -1304,6 +1304,9 @@ impl<'a> GuestCommand<'a> {
         }
 
         if self.capture_output {
+            // The caller should call .wait() on the returned child
+            #[allow(unknown_lints)]
+            #[allow(clippy::zombie_processes)]
             let child = self
                 .command
                 .stderr(Stdio::piped())
@@ -1333,6 +1336,9 @@ impl<'a> GuestCommand<'a> {
                 ))
             }
         } else {
+            // The caller should call .wait() on the returned child
+            #[allow(unknown_lints)]
+            #[allow(clippy::zombie_processes)]
             self.command.spawn()
         }
     }