these 2 derivations will be built:
  /nix/store/b41lkmf0zqdfihygb860v5y5zkaybp3n-flake-inputs.drv
  /nix/store/ngdmhgcs3pmzxdm5dkb2rv752j68lc51-check-flake-inputs.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy