this derivation will be built:
  /nix/store/pkax6rdqmg5bjvjmp68whin5c4wp0lax-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/pkax6rdqmg5bjvjmp68whin5c4wp0lax-bcachefs-module-7.0.0-31-generic.drv'...