these 2 derivations will be built:
  /nix/store/z0bvw9hjnrcqbc0jmihi5ws4x61mf4yr-flake-inputs.drv
  /nix/store/araq5bs9v3d6rml0grrmfrlkpbmkf8nv-check-flake-inputs.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy