these 2 derivations will be built:
  /nix/store/430s996v1mnfqvkq1h8z3kjk8c09945i-test-stack-land.drv
  /nix/store/vjlai8q0g9h94p7i6manpj4y9ic0q8x9-stack-land-integration.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy