these 2 derivations will be built:
  /nix/store/72bsqbkm4h341hglcl02f9bgpbxn4x3a-flake-inputs.drv
  /nix/store/2ngjy5l25zx7bqmh6mfs9zax8hrj9ik8-check-flake-inputs.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy