this derivation will be built:
  /nix/store/7wpc1vid37i1ivy818p7599v9w8iq0fk-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/7wpc1vid37i1ivy818p7599v9w8iq0fk-bcachefs-module-7.0.0-38-generic.drv'...