these 2 derivations will be built:
  /nix/store/bmj1j2yh8iglaxlgzikp8zw1yf6qp2x7-closure-info.drv
  /nix/store/ivgps0qq6w77zpqfghdbm57ch01b92a9-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
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy