these 2 derivations will be built:
  /nix/store/95xkd09s9ss6cliixwm1dcnsc7dnn9zp-closure-info.drv
  /nix/store/21wpkfkifwpsrqm9z21zn7fv13jfvyfh-check-vars.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy