these 3 derivations will be built:
  /nix/store/id1s3y5016bmgxjns3qxdsirlpdnpvqg-libc-0.2.191.drv
  /nix/store/p6v25qmbprziqajnvaxx8j3ra5284xjl-cargo-vendor-dir.drv
  /nix/store/1dd7sb0gjzjspf803mghx6hz9f2lx67k-cntr.drv