this derivation will be built:
  /nix/store/2dckhhhvz0w43mnbmkw3ycbw837hnwsd-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/2dckhhhvz0w43mnbmkw3ycbw837hnwsd-bcachefs-module-7.0.0-29-generic.drv'...