this derivation will be built:
  /nix/store/sk7mcp37zn28s2qbz09p6gab431w0m30-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/sk7mcp37zn28s2qbz09p6gab431w0m30-bcachefs-module-7.0.0-29-generic.drv'...