this derivation will be built:
  /nix/store/l8ml09v2myd7s380q4d9szkwv27djsf6-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/l8ml09v2myd7s380q4d9szkwv27djsf6-bcachefs-module-7.0.0-39-generic.drv'...