this derivation will be built:
  /nix/store/rs55pbh51n4281l27bnd2v908lzc4vx7-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/rs55pbh51n4281l27bnd2v908lzc4vx7-bcachefs-module-7.0.0-31-generic.drv'...