this derivation will be built:
  /nix/store/7cgncf0x3lwm1aqzvqh1687mrl71jwb6-bcachefs-module-7.0.0-27-generic.drv
building '/nix/store/7cgncf0x3lwm1aqzvqh1687mrl71jwb6-bcachefs-module-7.0.0-27-generic.drv'...