this derivation will be built:
  /nix/store/gn4ax4pw0s4iay0ygv8yawjbn0rzsyx7-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/gn4ax4pw0s4iay0ygv8yawjbn0rzsyx7-bcachefs-module-7.0.0-31-generic.drv'...