--- a/pkg/imports/gm.go	Wed Dec 26 10:25:49 2018 +0100
+++ b/pkg/imports/gm.go	Wed Dec 26 10:30:19 2018 +0100
@@ -102,16 +102,12 @@
 
 // StageDone moves the imported gauge measurement out of the staging area.
 // Currently doing nothing.
-func (gmJobCreator) StageDone(
-	ctx context.Context,
-	tx *sql.Tx,
-	id int64,
-) error {
+func (gmJobCreator) StageDone(context.Context, *sql.Tx, int64) error {
 	return nil
 }
 
 // CleanUp of a gauge measurement import is a NOP.
-func (gm *GaugeMeasurement) CleanUp() error { return nil }
+func (*GaugeMeasurement) CleanUp() error { return nil }
 
 // Do executes the actual bottleneck import.
 func (gm *GaugeMeasurement) Do(