this derivation will be built:
  /nix/store/kdpax1mhni485szsfn7n2b4flq59isrf-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/kdpax1mhni485szsfn7n2b4flq59isrf-bcachefs-module-7.0.0-39-generic.drv'...