these 3 derivations will be built:
  /nix/store/8qs4h5fj4g8q9s28j32n5ng1nny7yi3k-omp-18.8.6-cargo-vendor-vendor.drv
  /nix/store/7m7m6ikx0x516hhfycpbaz7acc725kyw-omp-18.8.6.drv
  /nix/store/4lig5j66n64mbfq6ii850gxzp4s5bxbq-check-omp.drv