this derivation will be built:
  /nix/store/b9w2v2pbhnyraf7ar9wyqsvmx5bqxrwn-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/b9w2v2pbhnyraf7ar9wyqsvmx5bqxrwn-bcachefs-module-7.0.0-39-generic.drv'...