3 files changed, 7 insertions, 7 deletions
diff --git a/src/libstore/build/derivation-goal.cc b/src/libstore/build/derivation-goal.cc
index 5aed51bcd..2949a0a1f 100644
--- a/src/libstore/build/derivation-goal.cc
+++ b/src/libstore/build/derivation-goal.cc
@@ -134,7 +134,7 @@ void DerivationGoal::killChild()
 void DerivationGoal::timedOut(Error && ex)
 {
     killChild();
-    done(BuildResult::TimedOut, {}, ex);
+    done(BuildResult::TimedOut, {}, std::move(ex));
 }
 
 
@@ -984,7 +984,7 @@ void DerivationGoal::buildDone()
                 BuildResult::PermanentFailure;
         }
 
-        done(st, {}, e);
+        done(st, {}, std::move(e));
         return;
     }
 }
@@ -1435,7 +1435,7 @@ void DerivationGoal::done(
         fs << worker.store.printStorePath(drvPath) << "\t" << buildResult.toString() << std::endl;
     }
 
-    amDone(buildResult.success() ? ecSuccess : ecFailed, ex);
+    amDone(buildResult.success() ? ecSuccess : ecFailed, std::move(ex));
 }
 
 
diff --git a/src/libstore/build/entry-points.cc b/src/libstore/build/entry-points.cc
index bea7363db..e1b80165e 100644
--- a/src/libstore/build/entry-points.cc
+++ b/src/libstore/build/entry-points.cc
@@ -30,7 +30,7 @@ void Store::buildPaths(const std::vector<DerivedPath> & reqs, BuildMode buildMod
             if (ex)
                 logError(i->ex->info());
             else
-                ex = i->ex;
+                ex = std::move(i->ex);
         }
         if (i->exitCode != Goal::ecSuccess) {
             if (auto i2 = dynamic_cast<DerivationGoal *>(i.get())) failed.insert(i2->drvPath);
@@ -40,7 +40,7 @@ void Store::buildPaths(const std::vector<DerivedPath> & reqs, BuildMode buildMod
 
     if (failed.size() == 1 && ex) {
         ex->status = worker.exitStatus();
-        throw *ex;
+        throw std::move(*ex);
     } else if (!failed.empty()) {
         if (ex) logError(ex->info());
         throw Error(worker.exitStatus(), "build of %s failed", showPaths(failed));
@@ -109,7 +109,7 @@ void Store::ensurePath(const StorePath & path)
     if (goal->exitCode != Goal::ecSuccess) {
         if (goal->ex) {
             goal->ex->status = worker.exitStatus();
-            throw *goal->ex;
+            throw std::move(*goal->ex);
         } else
             throw Error(worker.exitStatus(), "path '%s' does not exist and cannot be created", printStorePath(path));
     }
diff --git a/src/libstore/build/local-derivation-goal.cc b/src/libstore/build/local-derivation-goal.cc
index d2798888b..dc6f8eeba 100644
--- a/src/libstore/build/local-derivation-goal.cc
+++ b/src/libstore/build/local-derivation-goal.cc
@@ -230,7 +230,7 @@ void LocalDerivationGoal::tryLocalBuild() {
         outputLocks.unlock();
         buildUser.reset();
         worker.permanentFailure = true;
-        done(BuildResult::InputRejected, {}, e);
+        done(BuildResult::InputRejected, {}, std::move(e));
         return;
     }