these 4 derivations will be built:
  /nix/store/px88fd1n54cgyajyzqxxzvw37v8k9am7-clan-runtime.drv
  /nix/store/3r0ax2yf11nn8wlcm1m1w7acslzg0bfq-clan-cli-source.drv
  /nix/store/m4m60lxvfhlfcq6rbqmbgp77rwalr8h3-clan-cli.drv
  /nix/store/r9vx34r80nyxlssdw4brgmwx6yw1jgb2-nix-shell.drv