diff --git a/ofborg/src/outpathdiff.rs b/ofborg/src/outpathdiff.rs
index 0c21d3f..2e379d7 100644
--- a/ofborg/src/outpathdiff.rs
+++ b/ofborg/src/outpathdiff.rs
@@ -49,16 +49,16 @@ impl OutPathDiff {
         return result;
     }
 
-    pub fn find_before(&mut self) -> bool {
+    pub fn find_before(&mut self) -> Result<bool, File> {
         let x = self.run();
         match x {
             Ok(f) => {
                 self.original = Some(self.parse(f));
-                return true;
+                return Ok(true);
             }
-            Err(_) => {
+            Err(e) => {
                 info!("Failed to find Before list");
-                return false;
+                return Err(e);
             }
         }
     }
diff --git a/ofborg/src/tasks/massrebuilder.rs b/ofborg/src/tasks/massrebuilder.rs
index 3af419c..1c77283 100644
--- a/ofborg/src/tasks/massrebuilder.rs
+++ b/ofborg/src/tasks/massrebuilder.rs
@@ -126,11 +126,19 @@ impl worker::SimpleWorker for MassRebuildWorker {
             hubcaps::statuses::State::Pending
         );
 
-        if !rebuildsniff.find_before() {
+        if let Err(mut output) = rebuildsniff.find_before() {
+            overall_status.set_url(make_gist(
+                &gists,
+                "Output path comparison".to_owned(),
+                Some("".to_owned()),
+                file_to_str(&mut output),
+            ));
+
             overall_status.set_with_description(
-                format!("Failed to enumerate outputs of {}", &target_branch).as_ref(),
+                format!("Target branch {} doesn't evaluate!", &target_branch).as_ref(),
                 hubcaps::statuses::State::Failure
             );
+
             return self.actions().skip(&job);
         }
 
@@ -293,7 +301,6 @@ impl worker::SimpleWorker for MassRebuildWorker {
                          }
                      }
 
-
                      status.set_url(gist_url);
                      status.set(state.clone());