rtorrent is failing on latest .. only edge is working .. even debian doesn't work

Dockerfile

@@ -1,19 +1,15 @@
-FROM alpine:latest
-# RUN apk add supervisor
+FROM alpine:edge
 
 RUN mkdir /myconfig
 RUN mkdir /home/nfs_download
 RUN mkdir /root || true
 
-RUN apk add --no-cache bash
-RUN apk add --no-cache rtorrent
-RUN apk add --no-cache libcurl
-RUN apk add --no-cache curl
-
 # create file and ignore if it fails
 RUN touch /root/.rtorrent.rc || true
 COPY install/rtorrent.sh /rtorrent.sh
 
+RUN apk add --no-cache bash rtorrent curl libcurl ncurses
+
 VOLUME ["/home/nfs_download"]
 EXPOSE 5001/tcp
 ENTRYPOINT ["/rtorrent.sh"]