daemon: Read unsigned nar size and download size from substituter.

Fixes <https://issues.guix.gnu.org/51983>.
Reported by Tobias Geerinckx-Rice <me@tobias.gr>.

* nix/libstore/local-store.cc (LocalStore::querySubstitutablePathInfos):
Expect 'unsigned long long' for 'downloadSize' and 'narSize'.
* tests/store.scm ("substitute query and large size"): New test.

1 files changed, 2 insertions, 2 deletions

diff --git a/nix/libstore/local-store.cc b/nix/libstore/local-store.cc
index 675d1ba66f..d52b102343 100644
--- a/nix/libstore/local-store.cc
+++ b/nix/libstore/local-store.cc
@@ -907,8 +907,8 @@ void LocalStore::querySubstitutablePathInfos(PathSet & paths, SubstitutablePathI
             assertStorePath(p);
             info.references.insert(p);
         }
-        info.downloadSize = getIntLineFromSubstituter<long long>(run);
-        info.narSize = getIntLineFromSubstituter<long long>(run);
+        info.downloadSize = getIntLineFromSubstituter<unsigned long long>(run);
+        info.narSize = getIntLineFromSubstituter<unsigned long long>(run);
     }
 }