this derivation will be built:
  /nix/store/smlslkmp2dbgf6z2l6x1934a18dmx8p2-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/smlslkmp2dbgf6z2l6x1934a18dmx8p2-bcachefs-module-7.0.0-39-generic.drv'...