these 5 derivations will be built:
  /nix/store/m62x2vagwvhbsm71yn2n5x4i92mjwxy8-source.drv
  /nix/store/rh79fngh9y7wyn2bdbqrm1442a32z9n6-omp-18.4.10-cargo-vendor-vendor-staging.drv
  /nix/store/9kkfvki6zclpkyz8k8m5zmyhzz5r85z2-omp-18.4.10-cargo-vendor-vendor.drv
  /nix/store/n66037psymzcvnyl4rbxlgn3vmys9vxx-omp-18.4.10.drv
  /nix/store/m9pnnyrnngx8n665zvdpnv8w7v9wr1cx-check-omp.drv