these 3 derivations will be built:
  /nix/store/jq331rcb4lb3jzsgjzzk280xqamimr39-aven-0.1.40-vendor-staging.drv
  /nix/store/j4fwar79bdv8nqyj7qdsrhaznqi16dxx-aven-0.1.40-vendor.drv
  /nix/store/wz956vnfrjhwpivb1wiy97h7y02kg8dd-aven-0.1.40.drv