this derivation will be built:
  /nix/store/b2d9xkvqhxrs06724kg6dfl6h937y2ly-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/b2d9xkvqhxrs06724kg6dfl6h937y2ly-bcachefs-module-7.0.0-39-generic.drv'...