these 3 derivations will be built:
  /nix/store/h34iqppy39xi6vkl3zgdl9cwjcndnbmb-treefmt.toml.drv
  /nix/store/2ma4qmvbzfvda1k5km4ih7dw724i6ywq-treefmt.drv
  /nix/store/5liy406vs4bqbnmnqgc2vkjw3rg8qxxl-treefmt-check.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy