these 2 derivations will be built:
  /nix/store/fvyc076wgppq2df41j1xh3g0w8qbbdnj-workmux-0.1.246-vendor.drv
  /nix/store/c5grh7xf9nmzyyd9jwmqmp22y41bznqa-workmux-0.1.246.drv