this derivation will be built:
  /nix/store/749s4n45sfqdgkqg9advncm4fvz6z6q3-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/749s4n45sfqdgkqg9advncm4fvz6z6q3-bcachefs-module-7.0.0-38-generic.drv'...