these 4 derivations will be built:
  /nix/store/l2hrdw1l8i2c3bk2133rjcj95na2is01-vendor-registry.drv
  /nix/store/kvbf29dhi7sbv1ppahskrsjimmh2a72k-vendor-cargo-deps.drv
  /nix/store/aaprh8idz7ar2ifywm742hk0s7p5d577-harmonia-deps-3.3.0.drv
  /nix/store/rpwch8s40iam0zc52px12xckmkcs40fx-harmonia-llvm-cov-3.3.0.drv