these 2 derivations will be built:
  /nix/store/s8lpvppgwah8rfg55pwygv98aky6rpnz-flake-inputs.drv
  /nix/store/1pxr6cv13wcv5v8fx6kf25wh8mcl0i8c-check-flake-inputs.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy