these 3 derivations will be built:
  /nix/store/apqn1vyrlpsalwzsx09kn7yarz08f7h2-but-0.23.4-vendor.drv
  /nix/store/z5c5p3ankjnhrgj0ppbymgqqhl42p4d1-but-0.23.4.drv
  /nix/store/km3g4sgds2anirygpw59arzsfkfp8hi1-check-but.drv