these 2 derivations will be built:
  /nix/store/n2pgpaq6g1mbb7ax19d6s9lhvg9di5wf-flake-inputs.drv
  /nix/store/ipdgxsrfz1d4p6j8dv9gr9ys8h9v3a6r-check-flake-inputs.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy