these 2 derivations will be built:
  /nix/store/zxqdxdwvkv3awkmnjjax910nzz6d4kdf-flake-inputs.drv
  /nix/store/sxafr96ywlp9lgpkdlk1sq453v0xa5m3-check-flake-inputs.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy