this derivation will be built:
  /nix/store/igs56gqfhsbszy8g1vqr506xgznxr3pf-bcachefs-module-7.0.0-14-generic.drv
building '/nix/store/igs56gqfhsbszy8g1vqr506xgznxr3pf-bcachefs-module-7.0.0-14-generic.drv'...