this derivation will be built:
  /nix/store/fah56ap7k1xrpcnl6w7702q4pbdwl6dj-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/fah56ap7k1xrpcnl6w7702q4pbdwl6dj-bcachefs-module-7.0.0-38-generic.drv'...