these 3 derivations will be built:
  /nix/store/hki6lfh42fz90w81nmgrzm6sy41g2sqw-glob-0.3.4.drv
  /nix/store/yh3i6lr2fxbffz7lrn0rhwzzmwv7g0rr-cargo-vendor-dir.drv
  /nix/store/b13yx4d125a2n10phpdh3gbc3mvm17xw-bob-0.1.0.drv