this derivation will be built:
  /nix/store/q9p36ysya3ki835507w8k699b0y7v7nz-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/q9p36ysya3ki835507w8k699b0y7v7nz-bcachefs-module-7.0.0-39-generic.drv'...