Update Travis to latest LTS, ensure ipv6 works for fetch test (EFForg#17160)

Hainish · web-flow · commit 9ff1743690a1 · 2019-01-03T12:26:10.000-08:00
diff --git a/.travis.yml b/.travis.yml
@@ -3,7 +3,7 @@ os: linux
 dist: trusty
 language: python
 python: 3.6
-group: deprecated-2017Q4
+group: bionic
 services:
   - docker
 matrix:
diff --git a/test/run_travis.sh b/test/run_travis.sh
@@ -80,7 +80,7 @@ elif [ "$TEST" == "validations" ] || [ "$TEST" == "fetch" ] || [ "$TEST" == "pre
     if [ "$TEST" == "fetch" ]; then
       echo >&2 "Testing test URLs in all changed rulesets."
       # --privileged is required here for miredo to create a network tunnel
-      docker run --rm -ti -v $(pwd):/opt -e RULESETS_CHANGED="$RULESETS_CHANGED" --privileged httpse bash -c "service miredo start && service tor start && test/fetch.sh"
+      docker run --rm -ti -v $(pwd):/opt -e RULESETS_CHANGED="$RULESETS_CHANGED" --privileged httpse bash -c "echo 0 > /proc/sys/net/ipv6/conf/all/disable_ipv6 && service miredo start && service tor start && test/fetch.sh"
     fi
 
     if [ "$TEST" == "preloaded" ]; then
