Due to a compilation options and the version of cowboy used by ettorent, compilation abort:
/home/benoitc/work/etorrent/deps/cowboy/src/cowboy_http_websocket.erl:574: crypto:sha/1 is deprecated and will be removed in in a future release; use crypto:hash/2
ERROR: compile failed while processing /home/benoitc/work/etorrent/deps/cowboy: rebar_abort
make: *** [compile] Error 1
Due to a compilation options and the version of cowboy used by ettorent, compilation abort: