these 2 derivations will be built:
  /nix/store/r01kghdpddnbmxbbf12ddfsqw0q5bakz-flake-inputs.drv
  /nix/store/f3rggq1bpbh3himg3y15l46hs2zmd05a-check-flake-inputs.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy