these 7 derivations will be built:
  /nix/store/21haqpf01x8rg9kqnm6q27pybm8ljmk7-futures-core-0.3.33.drv
  /nix/store/2bxnsm0g9glvnc8xlqn107s4jdnkkhlj-futures-task-0.3.33.drv
  /nix/store/5x82jxi229l2ijdpjaiq0kdilq18c0s5-futures-sink-0.3.33.drv
  /nix/store/kxigz8cjar0z3ij719kx6h61qs2m4wla-futures-util-0.3.33.drv
  /nix/store/wqyc0r9jxch2q0q2j3ssi6fpmx5skz5s-futures-macro-0.3.33.drv
  /nix/store/2s453db9fld9x7v2ic37blw4jky5j8im-cargo-vendor-dir.drv
  /nix/store/5znyfsalshb539497kfrj671ab0qnd1w-fast-nix-gc-0.1.0.drv