Fix things

dev/rust/Dockerfile

@@ -0,0 +1,4 @@
+FROM docker.io/xena/dotfiles
+
+ENV SHELL /bin/bash
+RUN curl -s https://static.rust-lang.org/rustup.sh | sh

net/irssi/base/Dockerfile

@@ -1,16 +1,8 @@
-FROM ubuntu:trusty
+FROM irssi
 
-RUN apt-get update && apt-get install irssi git-core -y
-
-# create smurf user
-RUN addgroup user && adduser --ingroup user --disabled-password user
-
-ENV HOME /home/user
-ENV LC_CTYPE en_US.UTF-8
-
-# I use tmux in 256 color mode. Too bad if you don't.
-ENV TERM screen-256color
+USER root
+RUN apt-get update && apt-get install git
 
 USER user
-
-CMD irssi
+# I use tmux in 256 color mode. Too bad if you don't.
+ENV TERM screen-256color