this derivation will be built:
  /nix/store/m4a3ryqn78srzca7yjk8zm80x91js3nr-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/m4a3ryqn78srzca7yjk8zm80x91js3nr-bcachefs-module-7.0.0-31-generic.drv'...