these 6 derivations will be built:
  /nix/store/7dqgg2izid3vvs7xqgjifw0pcrk5npcg-cargo-package-rustls-0.23.46.drv
  /nix/store/kg58j4dxx4siiwk10xav0s8hlhb3q113-vendor-registry.drv
  /nix/store/pw39qgyr626cd67l310y7x97r4si8dgq-vendor-cargo-deps.drv
  /nix/store/ssjgwv6mvlja7k9b6v8vj021882mcsla-source.drv
  /nix/store/d8rw3dz7knjx578s5r7qsjwyv1q93511-harmonia-deps-3.3.0.drv
  /nix/store/8qxr86zfkfvmii51ncppdsszf0a0ygj6-harmonia-llvm-cov-3.3.0.drv