these 6 derivations will be built:
  /nix/store/aihr9g88n1a1wmv2cfn5g1wkcsl3yq17-source.drv
  /nix/store/qn7mqz4naa8qrxbdq96r19sn3q54kp42-cargo-package-tokio-util-0.7.20.drv
  /nix/store/wflamc0136gdjmdxqw8dn45zm62arp4m-vendor-registry.drv
  /nix/store/vadgnfzpc4s5bcrfpfixjw4x14wldxnd-vendor-cargo-deps.drv
  /nix/store/0dlfbs3gf1zycaai5i2a4k362c2s0fyj-harmonia-deps-3.3.0.drv
  /nix/store/9q995zpy5xj419lkjfkk94y8h5l2999j-harmonia-3.3.0.drv
this path will be fetched (146.4 KiB download, 146.4 KiB unpacked):
  /nix/store/vkf4qmfgfyzv32vk9ixd27rcz41rs394-cargo-src-tokio-util-0.7.20