these 2 derivations will be built:
  /nix/store/nlkyp401vx6wf3v647zidlxa2yvk42h2-treefmt.drv
  /nix/store/34p8wigg4g5xzfnzxdp3bm3nx798wy03-nix-shell.drv
this path will be fetched (0.0 KiB download, 2.4 KiB unpacked):
  /nix/store/ih68y5g7maljrdzs8w5m27f1hhssbhiy-treefmt.toml
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy