this derivation will be built:
  /nix/store/r5xkkwv2m7cmkqlqr1yn88mkkwk22yky-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/r5xkkwv2m7cmkqlqr1yn88mkkwk22yky-bcachefs-module-7.0.0-39-generic.drv'...