these 3 derivations will be built:
  /nix/store/iszkbfsfl430as8r8q101bck63a8ap6m-aven-0.1.30-vendor-staging.drv
  /nix/store/rdgxixa6idhwq9zzc476bn0p76pwkp1n-aven-0.1.30-vendor.drv
  /nix/store/yn7ssd4r9hz3ydflnk4rjjm26f66pwbh-aven-0.1.30.drv