these 4 derivations will be built:
  /nix/store/skjvdgd41h0npmpnbpr1ba2v8ydb5lrh-clan-cli-source.drv
  /nix/store/20jfxghl61q3rf3n8ljfycwamxgmigc2-clan-cli.drv
  /nix/store/m0w16nypx5dvczcs10r5r2mci96m90xx-tofu.drv
  /nix/store/2wvjaacmw1wrhwgb425mg4q3m1bl561d-cache-new.drv