these 2 derivations will be built:
  /nix/store/xdbfz4v4icydalrxbgwkq0r2jxn9f633-flake-inputs.drv
  /nix/store/hw6bqvmzdyvb3lx4rzmq8hh0qh0pf3i5-check-flake-inputs.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy