update go mod and inject store the hash index in dagstore

node/impl/client/client.go

@@ -516,7 +516,7 @@ func (a *API) ClientImport(ctx context.Context, ref api.FileRef) (res *api.Impor
 		}
 		defer f.Close() //nolint:errcheck
 
-		hd, _, err := car.ReadHeader(bufio.NewReader(f))
+		hd, err := car.ReadHeader(bufio.NewReader(f))
 		if err != nil {
 			return nil, xerrors.Errorf("failed to read CAR header: %w", err)
 		}
@@ -1196,7 +1196,7 @@ func (a *API) ClientCalcCommP(ctx context.Context, inpath string) (*api.CommPRet
 	}
 
 	// check that the data is a car file; if it's not, retrieval won't work
-	_, _, err = car.ReadHeader(bufio.NewReader(rdr))
+	_, err = car.ReadHeader(bufio.NewReader(rdr))
 	if err != nil {
 		return nil, xerrors.Errorf("not a car file: %w", err)
 	}