these 3 derivations will be built:
  /nix/store/kzcmih7qgjgxb8dcawiggkjk8lrcciw5-tokio-1.53.2.drv
  /nix/store/a86139iw77ds86gzsvk1d7alw2nqc8ks-cargo-vendor-dir.drv
  /nix/store/w9dfd0dda6gzljlf19y7f4cb04j5kqg9-fast-nix-gc-0.1.0.drv