this derivation will be built:
  /nix/store/3k84cy0764d0h350zn2c0p36af4jgz8l-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/3k84cy0764d0h350zn2c0p36af4jgz8l-bcachefs-module-7.0.0-31-generic.drv'...