this derivation will be built:
  /nix/store/907p11sb84ckb8iz4xia7kfig655wmnk-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/907p11sb84ckb8iz4xia7kfig655wmnk-bcachefs-module-7.0.0-38-generic.drv'...