this derivation will be built:
  /nix/store/vbqbgg2d26m5wjj26zj813sfdmxxpy0q-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/vbqbgg2d26m5wjj26zj813sfdmxxpy0q-bcachefs-module-7.0.0-29-generic.drv'...