these 2 derivations will be built:
  /nix/store/pbvp59cp6sgir21fjjywx0jg1mn51ha5-flake-inputs.drv
  /nix/store/rqd0qwak5n32am9lfmnj0kjqhm0rxzv2-check-flake-inputs.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy