this derivation will be built:
  /nix/store/ayn5rr6v43wbjlcq80rprp9qa6qscbyb-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/ayn5rr6v43wbjlcq80rprp9qa6qscbyb-bcachefs-module-7.0.0-39-generic.drv'...