this derivation will be built:
  /nix/store/a2qd86v5cbghijc9123mvbqaffq9i8yx-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/a2qd86v5cbghijc9123mvbqaffq9i8yx-bcachefs-module-7.0.0-39-generic.drv'...