these 2 derivations will be built:
  /nix/store/p09lclyhhh4hkg0m3f2j3vns6lmz2r38-flake-inputs.drv
  /nix/store/9v8w9vy8hlcwm8wv4vyn7s8n7k59yrqg-check-flake-inputs.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy