these 2 derivations will be built:
  /nix/store/i9hwg3rrc3nz94w6qxcfwyq4j48czq3l-flake-inputs.drv
  /nix/store/39jqbmhz890kkvy6viibh0sfpfq2gmky-check-flake-inputs.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy