1 files changed, 5 insertions, 5 deletions

diff --git a/src/libstore/local-fs-store.cc b/src/libstore/local-fs-store.cc
index aa5abd835..dd96d2578 100644
--- a/src/libstore/local-fs-store.cc
+++ b/src/libstore/local-fs-store.cc
@@ -22,7 +22,7 @@ struct LocalStoreAccessor : public FSAccessor
     {
         Path storePath = store->toStorePath(path);
         if (!store->isValidPath(store->parseStorePath(storePath)))
-            throw InvalidPath(format("path '%1%' is not a valid store path") % storePath);
+            throw InvalidPath("path '%1%' is not a valid store path", storePath);
         return store->getRealStoreDir() + std::string(path, store->storeDir.size());
     }
 
@@ -33,11 +33,11 @@ struct LocalStoreAccessor : public FSAccessor
         struct stat st;
         if (lstat(realPath.c_str(), &st)) {
             if (errno == ENOENT || errno == ENOTDIR) return {Type::tMissing, 0, false};
-            throw SysError(format("getting status of '%1%'") % path);
+            throw SysError("getting status of '%1%'", path);
         }
 
         if (!S_ISREG(st.st_mode) && !S_ISDIR(st.st_mode) && !S_ISLNK(st.st_mode))
-            throw Error(format("file '%1%' has unsupported type") % path);
+            throw Error("file '%1%' has unsupported type", path);
 
         return {
             S_ISREG(st.st_mode) ? Type::tRegular :
@@ -90,13 +90,13 @@ const string LocalFSStore::drvsLogDir = "drvs";
 
 std::shared_ptr<std::string> LocalFSStore::getBuildLog(const StorePath & path_)
 {
-    auto path = path_.clone();
+    auto path = path_;
 
     if (!path.isDerivation()) {
         try {
             auto info = queryPathInfo(path);
             if (!info->deriver) return nullptr;
-            path = info->deriver->clone();
+            path = *info->deriver;
         } catch (InvalidPath &) {
             return nullptr;
         }