this derivation will be built:
  /nix/store/d7pgkwrgvrqsyyb0gyyy1rbi2iq6d1i8-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/d7pgkwrgvrqsyyb0gyyy1rbi2iq6d1i8-bcachefs-module-7.0.0-39-generic.drv'...