this derivation will be built:
  /nix/store/yac42g6546md34f39klx2rqic8ywx9hs-bcachefs-module-7.0.0-34-generic.drv
building '/nix/store/yac42g6546md34f39klx2rqic8ywx9hs-bcachefs-module-7.0.0-34-generic.drv'...