this derivation will be built:
  /nix/store/pb789bl6m40l00wn6y3lsqq2wp5m91c7-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/pb789bl6m40l00wn6y3lsqq2wp5m91c7-bcachefs-module-7.0.0-39-generic.drv'...