these 3 derivations will be built:
  /nix/store/0h66rlazv0n8rz8qq4a9vhn2qdds7lsd-vcv-rtaudio-unstable-2020-01-30.drv
  /nix/store/iniinlymi5hxjjgybcjxl1f6m5rblvvm-VCV-Rack.desktop.drv
  /nix/store/imdd2nf5fl8mhyamdhb5xny6frvgmgzr-VCV-Rack-2.2.1.drv
these 13 paths will be fetched (728.7 KiB download, 2.7 MiB unpacked):
  /nix/store/5zv52k8h78s55pgqm8hqicr44zkgqv7b-acl-2.3.1-bin
  /nix/store/7r4bgkmsxs18kkgyx5gmndy455wralvj-acl-2.3.1-dev
  /nix/store/k8v11l1c03mnf2ig32qwy3r9zryg0q1i-filesystem-1.5.12
  /nix/store/rbla9ypmzlq7cli1acd5skaxxba55l62-glfw-3.3.8
  /nix/store/vw9lf2d0cfw92dsascyv7q1l5w260r2g-jq-1.6-bin
  /nix/store/800makjzq868rhh54q5mwpz3ngbnfkh3-jq-1.6-dev
  /nix/store/3fx9hdbvimarxczndbyy93wmi15q37hl-jq-1.6-lib
  /nix/store/djdaah3s2zj1vg2k6cl1b24767xwn35i-libarchive-3.6.1
  /nix/store/98cyq3vqdg8mz4qp88937h5g138a4j1w-libarchive-3.6.1-dev
  /nix/store/rahdhqzafzxdjm1gik589d6kr5d4j0i4-libicns-0.8.1
  /nix/store/452ixzca51vrfndjf8hi1g96ivd2a748-onig-6.9.8
  /nix/store/5v8yv44vql26xmgivk05v3zghwykdyqy-rtmidi-5.0.0
  /nix/store/lk4q2138z1d4bvxm991qbpc0k143qzz5-speexdsp-1.2.1-dev