this derivation will be built:
  /nix/store/b56nhkay75lcg5a0ysz14bz3xhjpcl31-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/b56nhkay75lcg5a0ysz14bz3xhjpcl31-bcachefs-module-7.0.0-29-generic.drv'...