From 790271559cb8b36cd8fcdc533f41be88ec15ad08 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <eelco.dolstra@logicblox.com>
Date: Sun, 17 Aug 2014 19:11:50 +0200
Subject: [PATCH] Reduce verbosity

---
 nix/libstore/build.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/nix/libstore/build.cc b/nix/libstore/build.cc
index e72fb50d8e..be19dd8b61 100644
--- a/nix/libstore/build.cc
+++ b/nix/libstore/build.cc
@@ -1451,7 +1451,8 @@ void DerivationGoal::buildDone()
         outputLocks.unlock();
 
     } catch (BuildError & e) {
-        printMsg(lvlError, e.msg());
+        if (!hook)
+            printMsg(lvlError, e.msg());
         outputLocks.unlock();
         buildUser.release();