these 5 derivations will be built:
  /nix/store/6qamdb32wpj77d4v9qk7i5zccpfsic6a-source.drv
  /nix/store/ylffgvidrvdhi2k33h0b6b87a0knihxs-ccusage-20.0.42-vendor-staging.drv
  /nix/store/nbr6kjcj64cc9s2f3bawkn0j4lhj47r8-ccusage-20.0.42-vendor.drv
  /nix/store/2frs4wzrg4hnhbq9vps9lmv9icf6kn3x-ccusage-20.0.42.drv
  /nix/store/6q71h83qgmrnf33np0ffqa1ic6nw0svg-check-ccusage.drv