these 2 derivations will be built:
  /nix/store/v856ibgqphl56fkd24v0wwilaad8p6gd-test-stack-land.drv
  /nix/store/7ymqfi1znv952wbmf48r2khbhicb2xkx-stack-land-integration.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy