this derivation will be built:
  /nix/store/r5dvh7bn45wc41b8f5kzf7d7i0j05hw8-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/r5dvh7bn45wc41b8f5kzf7d7i0j05hw8-bcachefs-module-7.0.0-39-generic.drv'...