these 3 derivations will be built:
  /nix/store/n2pyf9awd4s52amrgbs70cn715iyjm4v-clan-cli-source.drv
  /nix/store/v9qqg5qnrdim8n1w8cs8dvkwvraw63ya-clan-cli.drv
  /nix/store/66yqikwmswax7l1ydrddp45syd8wc5k7-nix-shell.drv