these 6 derivations will be built:
  /nix/store/a577dlwpwnxyr6gs5vk87gam5f5ydz6b-cargo-package-tokio-util-0.7.20.drv
  /nix/store/hn59505bkfk63ww8vd6vk72y9hvc5vjb-vendor-registry.drv
  /nix/store/8cwvpfs69px48w55nf877rygf62mw512-vendor-cargo-deps.drv
  /nix/store/9m2wid6hs00z8a7ddm9gm3fxqalb7ljv-source.drv
  /nix/store/afms7g3pgdkp5h7wh2d62yxzah909dg9-harmonia-deps-3.3.0.drv
  /nix/store/p144c0kycn7rkklqagfhssh9ksxv9qn1-harmonia-llvm-cov-3.3.0.drv