this derivation will be built:
  /nix/store/5plkc59qcp6kpgz5x5d661m535wzac5g-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/5plkc59qcp6kpgz5x5d661m535wzac5g-bcachefs-module-7.0.0-39-generic.drv'...