this derivation will be built:
  /nix/store/c89qmb59wxxvhd1pnpwkv7dziw3qnml5-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/c89qmb59wxxvhd1pnpwkv7dziw3qnml5-bcachefs-module-7.0.0-39-generic.drv'...