re-introduce old nss im too tired for this

security/nss/automation/taskcluster/docker-saw/Dockerfile

@@ -0,0 +1,46 @@
+FROM ubuntu:16.04
+MAINTAINER Tim Taubert <ttaubert@mozilla.com>
+
+RUN useradd -d /home/worker -s /bin/bash -m worker
+WORKDIR /home/worker
+
+ENV DEBIAN_FRONTEND noninteractive
+
+RUN apt-get update && apt-get install -y \
+    binutils \
+    build-essential \
+    bzip2 \
+    clang-3.8 \
+    curl \
+    gcc-multilib \
+    g++-multilib \
+    gyp \
+    lib32z1-dev \
+    mercurial \
+    ninja-build \
+    unzip \
+    zlib1g-dev
+
+# Add missing LLVM plugin for gold linker.
+ADD LLVMgold.so.zip /usr/lib/llvm-3.8/lib/LLVMgold.so.zip
+RUN unzip /usr/lib/llvm-3.8/lib/LLVMgold.so.zip -d /usr/lib/llvm-3.8/lib/
+
+# Install SAW/Cryptol.
+RUN curl -LO https://saw.galois.com/builds/nightly/saw-0.2-2018-01-14-Ubuntu14.04-64.tar.gz && \
+    tar xzvf saw-*.tar.gz -C /usr/local --strip-components=1 && \
+    rm saw-*.tar.gz
+
+# Install Z3.
+RUN curl -LO https://github.com/Z3Prover/z3/releases/download/z3-4.6.0/z3-4.6.0-x64-ubuntu-16.04.zip && \
+    unzip z3*.zip && \
+    cp -r z3*/* /usr/local/ && \
+    rm -fr z3*
+
+ADD bin /home/worker/bin
+RUN chmod +x /home/worker/bin/*
+
+# Change user.
+USER worker
+
+# Set a default command useful for debugging
+CMD ["/bin/bash", "--login"]

security/nss/automation/taskcluster/docker-saw/bin/checkout.sh

@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+
+set -v -e -x
+
+# Default values for testing.
+REVISION=${NSS_HEAD_REVISION:-default}
+REPOSITORY=${NSS_HEAD_REPOSITORY:-https://hg.mozilla.org/projects/nss}
+
+# Clone NSS.
+for i in 0 2 5; do
+    sleep $i
+    hg clone -r $REVISION $REPOSITORY nss && exit 0
+    rm -rf nss
+done
+exit 1