these 3 derivations will be built:
  /nix/store/6an77p8jlld1l0zkvys6g3da7dcbrn5y-omp-18.8.3-cargo-vendor-vendor.drv
  /nix/store/gw6jcb47rji8ha90rn9fxjcdkkxqggm9-omp-18.8.3.drv
  /nix/store/8xwc6npvqm0lz175arinsvfwjx0jg3c7-check-omp.drv