these 4 derivations will be built:
  /nix/store/kfavijqnwd2ivc1na4nqnn79lvma95qj-source.drv
  /nix/store/3297xl37gprlrgy32kmd6nmg1ram4apn-workmux-0.1.243-vendor-staging.drv
  /nix/store/3kmb4r7cl7xg5ckhfr7qcsv58nim479r-workmux-0.1.243-vendor.drv
  /nix/store/6bg3aq1bgxyvdjhfzg3vgzj5c68ra9yn-workmux-0.1.243.drv