this derivation will be built:
  /nix/store/rlbxg941khhxy1c778c9cscgpxq2hwk2-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/rlbxg941khhxy1c778c9cscgpxq2hwk2-bcachefs-module-7.0.0-39-generic.drv'...