these 2 derivations will be built:
  /nix/store/r2601f47x4rapiy0js5za7zz2a3j94rb-closure-info.drv
  /nix/store/17k7gwr98n5jhd15zcwv3s52dnzisplp-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