>>> Emerging : portage://net-p2p/rtorrent-0.15.7:run?{[]}

These are the packages that would be merged, in order:

Calculating dependencies... done!

 └─step  1─┤ download  portage://dev-cpp/nlohmann_json-3.12.0-r1
             │           └─ file ─┤ 9.23 Mb  	 nlohmann_json-3.12.0.tar.gz
             │ download  portage://net-libs/libtorrent-0.15.7
             │           └─ file ─┤ 851.93 Kb  	 libtorrent-0.15.7.tar.gz
             │ download  portage://net-libs/udns-0.6
             │           └─ file ─┤ 83.13 Kb  	 udns-0.6.tar.gz
             │ download  portage://net-p2p/rtorrent-0.15.7
             │           └─ file ─┤ 846.66 Kb  	 rtorrent-0.15.7.tar.gz

 └─step  2─┤ install   portage://dev-cpp/nlohmann_json-3.12.0-r1
             │           └─ conf ─┤ USE = "-test"

 └─step  3─┤ install   portage://net-libs/udns-0.6
             │           └─ conf ─┤ USE = "ipv6 tools"

 └─step  4─┤ run       portage://net-libs/udns-0.6

 └─step  5─┤ install   portage://net-libs/libtorrent-0.15.7
             │           └─ conf ─┤ USE = "-debug -test"

 └─step  6─┤ run       portage://net-libs/libtorrent-0.15.7

 └─step  7─┤ install   portage://net-p2p/rtorrent-0.15.7
             │           └─ conf ─┤ USE = "-lua* -debug -test -tinyxml2 -xmlrpc"
             │                    │ LUA_SINGLE_TARGET = "-lua5-3 -lua5-4"

 └─step  8─┤ run     portage://net-p2p/rtorrent-0.15.7

Total: 11 actions (4 downloads, 4 installs, 3 runs), grouped into 8 steps.
       10.97 Mb to be downloaded.