these 2 derivations will be built:
  /nix/store/0xynih53060y60gah6cmhd8b98i2w115-closure-info.drv
  /nix/store/7fjypcmi5r0w0sh3l7nkk4q8i5vlyc9k-check-vars.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy