this derivation will be built:
  /nix/store/50d4bfgq7105p9zqqy14vacyzl1rg7dw-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/50d4bfgq7105p9zqqy14vacyzl1rg7dw-bcachefs-module-7.0.0-31-generic.drv'...