diff --git a/osh/worker/tasks/task_build.py b/osh/worker/tasks/task_build.py
index 72a1377ee..19ba653df 100644
--- a/osh/worker/tasks/task_build.py
+++ b/osh/worker/tasks/task_build.py
@@ -69,12 +69,18 @@ def run(self):
             else:
                 print("No srpm specified", file=sys.stderr)
                 self.fail()
+
             if results is None:
-                print("No results available", file=sys.stderr)
+                print("Task did not produce any results", file=sys.stderr)
+                self.fail()
+
+            try:
+                base_results = os.path.basename(results)
+                with open(results, "rb") as f:
+                    self.hub.upload_task_log(f, self.task_id, base_results)
+            except OSError as e:
+                print("Reading task logs failed:", e, file=sys.stderr)
                 self.fail()
-            base_results = os.path.basename(results)
-            with open(results, "rb") as f:
-                self.hub.upload_task_log(f, self.task_id, base_results)
 
         # first finish task, then fail if needed, so tarball gets unpacked
         self.hub.worker.finish_task(self.task_id)
diff --git a/osh/worker/tasks/task_errata_diff_build.py b/osh/worker/tasks/task_errata_diff_build.py
index af0fe6ef8..8ffa30acc 100644
--- a/osh/worker/tasks/task_errata_diff_build.py
+++ b/osh/worker/tasks/task_errata_diff_build.py
@@ -77,10 +77,19 @@ def run(self):
                                                    koji_profile=koji_profile,
                                                    su_user=su_user)
             print('Retcode:', retcode)
-            if results is not None:
+            if results is None:
+                print("Task did not produce any results", file=sys.stderr)
+                self.hub.worker.fail_scan(scan_id, 'Empty task results')
+                self.fail()
+
+            try:
                 base_results = os.path.basename(results)
                 with open(results, 'rb') as f:
                     self.hub.upload_task_log(f, self.task_id, base_results)
+            except OSError as e:
+                print("Reading task logs failed:", e, file=sys.stderr)
+                self.hub.worker.fail_scan(scan_id, f'Reading tak logs failed: {e}')
+                self.fail()
 
         if retcode > 0:
             print(f"Scanning has not completed successfully ({retcode})",
diff --git a/osh/worker/tasks/task_get_analyzer_versions.py b/osh/worker/tasks/task_get_analyzer_versions.py
index cdd21ff5b..a3ac3f084 100644
--- a/osh/worker/tasks/task_get_analyzer_versions.py
+++ b/osh/worker/tasks/task_get_analyzer_versions.py
@@ -44,10 +44,17 @@ def run(self):
             print('Retcode:', retcode)
 
             # upload results back to hub
-            if results is not None:
+            if results is None:
+                print("Task did not produce any results", file=sys.stderr)
+                self.fail()
+
+            try:
                 base_results = os.path.basename(results)
                 with open(results, "rb") as f:
                     self.hub.upload_task_log(f, self.task_id, base_results)
+            except OSError as e:
+                print("Reading task logs failed:", e, file=sys.stderr)
+                self.fail()
 
         if retcode > 0:
             print(f"Analyzer version retrieval has not completed successfully ({retcode})",