Handle queryPathInfo() failure from substituters when fallback is enabled

Fixes #1990.

1 files changed, 5 insertions, 0 deletions

diff --git a/src/libstore/local-store.cc b/src/libstore/local-store.cc
index c91dbf241bcf..5e392c237e88 100644
--- a/src/libstore/local-store.cc
+++ b/src/libstore/local-store.cc
@@ -880,6 +880,11 @@ void LocalStore::querySubstitutablePathInfos(const PathSet & paths,
                     narInfo ? narInfo->fileSize : 0,
                     info->narSize};
             } catch (InvalidPath) {
+            } catch (Error & e) {
+                if (settings.tryFallback)
+                    printError(e.what());
+                else
+                    throw;
             }
         }
     }