these 2 derivations will be built:
  /nix/store/glj19q1gb2s6ygnak2arb9fbdnzyxy8w-flake-inputs.drv
  /nix/store/w5i812cks4727v1ax7apqq2427d6mm3f-check-flake-inputs.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy