these 2 derivations will be built:
  /nix/store/915igx16l13j6sr4m0s7ywrli1zlhwml-flake-inputs.drv
  /nix/store/1rxdmi6s5d6ddh64mrvgi1dcgk9yl3sa-check-flake-inputs.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy