this derivation will be built:
  /nix/store/m21j88hn0f41zs1i1y5w5dga7pdyy6f6-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/m21j88hn0f41zs1i1y5w5dga7pdyy6f6-bcachefs-module-7.0.0-39-generic.drv'...