these 2 derivations will be built:
  /nix/store/1n3i47jpxral58dpmqz8l5c70jsl95ck-closure-info.drv
  /nix/store/afznkrw9yzwf470qyga1da75b2wb592c-check-vars.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy