these 7 derivations will be built:
  /nix/store/znncbgy7d25hak8163zja5iz63ffflqd-cargo-src-syn-3.0.4.drv
  /nix/store/05x6kzc4rjdf22xr9cwry3lrpia6c3kv-cargo-package-syn-3.0.4.drv
  /nix/store/91vxfsh9k3q200j5bvmlyga40ihndg1z-vendor-registry.drv
  /nix/store/1m0q8bc1jk27i8xm2kfwv1dmi04777y7-vendor-cargo-deps.drv
  /nix/store/6phjj9xvpsfiivzlk610qkjvxv3dx2fb-source.drv
  /nix/store/wxfggaswfy91dfh5i7n28y6zyzb2snql-harmonia-deps-3.2.0.drv
  /nix/store/hzykmswy52mxa89pxm7qmc1fjcrnzhjs-harmonia-llvm-cov-3.2.0.drv