110/118: Make ~DerivationGoal more reliable

[Ludovic Court�s]

civodul pushed a commit to branch nix
in repository guix.

commit e0825bd36b43f3c1d408745a9c61f92fdaf7dace
Author: Eelco Dolstra <eelco.dols...@logicblox.com>
Date:   Wed Nov 12 11:35:53 2014 +0100

    Make ~DerivationGoal more reliable
---
 nix/libstore/build.cc |   10 +++-------
 1 files changed, 3 insertions(+), 7 deletions(-)

diff --git a/nix/libstore/build.cc b/nix/libstore/build.cc
index 19d22ac..49a6ac9 100644
--- a/nix/libstore/build.cc
+++ b/nix/libstore/build.cc
@@ -863,13 +863,9 @@ DerivationGoal::~DerivationGoal()
 {
     /* Careful: we should never ever throw an exception from a
        destructor. */
-    try {
-        killChild();
-        deleteTmpDir(false);
-        closeLogFile();
-    } catch (...) {
-        ignoreException();
-    }
+    try { killChild(); } catch (...) { ignoreException(); }
+    try { deleteTmpDir(false); } catch (...) { ignoreException(); }
+    try { closeLogFile(); } catch (...) { ignoreException(); }
 }