these 2 derivations will be built:
  /nix/store/q3agnkssad7h9avr2v9bwak1hkby52fg-closure-info.drv
  /nix/store/5ygq49cgd0rkh9is381mhk1pvkybhmb9-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