these 3 derivations will be built:
  /nix/store/1yv2agvkxyfzb88w6anr5zyy4ip5lrkc-but-0.22.3-vendor.drv
  /nix/store/ghvz5qh6prhm70w1wjqlx048crzdwh9d-but-0.22.3.drv
  /nix/store/jicmvmf6x9l62rd7afdh6qw3gvgjx103-check-but.drv