these 2 derivations will be built:
  /nix/store/7yq89x7ancz5d5ql6iy0iz54bwvgk8b2-flake-inputs.drv
  /nix/store/m2s6yyiwcnvbx2yg3gm3q5c69n6akxn5-check-flake-inputs.drv