this derivation will be built:
  /nix/store/r8qqc927165kwq0gcz9ip2vmqpmmg8sy-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/r8qqc927165kwq0gcz9ip2vmqpmmg8sy-bcachefs-module-7.0.0-29-generic.drv'...