these 3 derivations will be built:
  /nix/store/by06p4h2z5aghwka7clnp9n02y6mczq8-clan-cli-source.drv
  /nix/store/i67wfb2dfrfrxp3515vq2vlj02jn1fhz-clan-cli.drv
  /nix/store/vmflx6b4lfrkw2xq0gq516i2gad9kknp-nix-shell.drv