these derivations will be built:
  /nix/store/6d7jndyhxzmsvdy61fr5m85a7hnazdh7-source.drv
  /nix/store/bbqmaqrs01z7knf6j9haz98b4shwvn1j-srt-1.3.1.drv
  /nix/store/yqmn382kz80h0bgzs3jb5kgz13x1l6vn-gst-plugins-bad-1.15.1.drv
these paths will be fetched (4.77 MiB download, 27.17 MiB unpacked):
  /nix/store/bxm5xhxziqawzx95x4dwk47z03qy4ais-libuv-1.23.2
  /nix/store/c099a8ln95hbxilmrcaan2rkpbpy4fqy-libarchive-3.3.3-lib
  /nix/store/c39nikyab2qfifbqzy7hqqkhvk7k05ca-unzip-6.0
  /nix/store/fcvnk2k32kdlkwzy4fv6xawn8pnxmgrs-rhash-1.3.6
  /nix/store/lw4xr0x2p6xyfgbk961lxh8vnnx7vn2r-cmake-3.12.1