this derivation will be built:
  /nix/store/a63dr79205w3rns14xd9v7cydj03yh3g-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/a63dr79205w3rns14xd9v7cydj03yh3g-bcachefs-module-7.0.0-39-generic.drv'...