this derivation will be built:
  /nix/store/rwbay1i9s9cdyg8ky78jrkl3rm1b1wz9-bcachefs-module-7.0.0-14-generic.drv
building '/nix/store/rwbay1i9s9cdyg8ky78jrkl3rm1b1wz9-bcachefs-module-7.0.0-14-generic.drv'...