these 2 derivations will be built:
  /nix/store/blh9g6vcr2y3ihg8nvz8v18213w78jg1-closure-info.drv
  /nix/store/46fgg7md823klfpv6055yj9i4j5vjpv0-check-vars.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy