this derivation will be built:
  /nix/store/ak6rzr4hhrggzjaaiifb0fl3yppzjbms-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/ak6rzr4hhrggzjaaiifb0fl3yppzjbms-bcachefs-module-7.0.0-38-generic.drv'...