these 4 derivations will be built:
  /nix/store/v6w39mg9r145836gp1ldndddh3mm197l-crate-cc-1.3.0.tar.gz.drv
  /nix/store/sm29f7b8ja1l86ijvidl6yj9bh20h28i-cc-1.3.0.drv
  /nix/store/p24h8z0sm94zpl15fymdb0yaxlxwh75v-cargo-vendor-dir.drv
  /nix/store/vxri2hh5y2v75gm55fglwcbnlgnp9hhh-nix-ld.drv