these 2 derivations will be built:
  /nix/store/qgq62jb1pzpfnciih3af2hk92bj96wsl-clan-runtime.drv
  /nix/store/xgi6kxlgyj1f7iwk5kli2g0an9wp5jx8-clan.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy