these 4 derivations will be built:
  /nix/store/fcb2njcn1s3phy8k93wdkfjb65c69hzc-home-manager-files.drv
  /nix/store/835ggxj8l4a3a0n4ab6i494ngcddgs2a-hm-putter.json.drv
  /nix/store/l7glx74hvlvbsgvzia11rn171197znp0-home-manager-agents.drv
  /nix/store/klkl6d7xcvfgbs5a2faj5sh83psnihvk-home-manager-generation.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy