this derivation will be built:
  /nix/store/6m6fbnvf6cj1m95qc3jgd60dz508wz3s-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/6m6fbnvf6cj1m95qc3jgd60dz508wz3s-bcachefs-module-7.0.0-39-generic.drv'...