Add error message to build description

Change-Id: Ifffce007fbe9d3bc47ea57c30ee652b5e0bdb680
diff --git a/gating-pipeline.groovy b/gating-pipeline.groovy
index c113d28..c8b4c09 100644
--- a/gating-pipeline.groovy
+++ b/gating-pipeline.groovy
@@ -68,6 +68,7 @@
   } catch (Throwable e) {
      // If there was an error or exception thrown, the build failed
      currentBuild.result = "FAILURE"
+     currentBuild.description = e.message
      throw e
   }
 }