these 3 derivations will be built:
  /nix/store/i434v6x4bjshxhxlachggxk94kmsqpyz-omp-18.18.9-cargo-vendor-vendor.drv
  /nix/store/38sx9y7ilrxbp1r4kbvrvv3k1nsfww0y-omp-18.18.9.drv
  /nix/store/8zrm45ciaa9ma7jvnx1ckgjjzb0vw798-check-omp.drv