these 2 derivations will be built:
  /nix/store/55v8z70pc9xxjk87qxg9k190ivz0s7bf-flake-inputs.drv
  /nix/store/vb1n21cqc285jjikw8539y3f5swqwyfy-check-flake-inputs.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy