this derivation will be built:
  /nix/store/g2cvbd1bf3mchdavgdsk80hfqs82kgjf-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/g2cvbd1bf3mchdavgdsk80hfqs82kgjf-bcachefs-module-7.0.0-29-generic.drv'...