more verbose errors

runner/runner.go

@@ -41,14 +41,14 @@ func (r *Runner) Run() error {
 		if v != fv {
 			l, e := goBuildBinary(m.RootPath)
 			if e != nil {
-				return e
+				return fmt.Errorf("error in goBuildBinary: %s", e)
 			}
 			_, e = r.client.Logentry.
 				Create().
 				SetContent(l).
 				Save(context.Background())
 			if e != nil {
-				return e
+				return fmt.Errorf("error creating log entry: %s", e)
 			}
 			if m.MoveToTarget {
 				if fl, e := copyFile(
@@ -62,12 +62,12 @@ func (r *Runner) Run() error {
 						SetContent(fl).
 						Save(context.Background())
 					if e != nil {
-						return e
+						return fmt.Errorf("error saving log entry: %s", e)
 					}
 				}
 			} else {
 				if e := chownBinary(m.User, m.Group, fmt.Sprintf("%s/%s", m.RootPath, m.BinaryPath)); e != nil {
-					return e
+					return fmt.Errorf("error chowning binary: %s", e)
 				}
 			}