this derivation will be built:
  /nix/store/l323qjapcpq0sfczipy887gmx1wc89km-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/l323qjapcpq0sfczipy887gmx1wc89km-bcachefs-module-7.0.0-29-generic.drv'...