these 3 derivations will be built:
  /nix/store/dcwbqkc6zdyp8i6fj3zhn0sv9h2gix2k-clan-cli.drv
  /nix/store/di5dpnzych5wdsx0yxd8za2ligvhcvqm-closure-info.drv
  /nix/store/8rqd754xjp0a574a3g58kka5wcp7pcvs-check-vars.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy