allow prune to fail to prevent build from terminating

services/clsi/Jenkinsfile

@@ -54,7 +54,7 @@ pipeline {
       steps {
         sh 'mkdir -p compiles cache'
         // Not yet running, due to volumes/sibling containers
-        sh 'docker container prune -f'
+        sh 'docker container prune -f || true'
         sh 'docker pull $TEXLIVE_IMAGE'
         sh 'docker pull sharelatex/acceptance-test-runner:clsi-6.11.2'
         sh 'docker run --rm -e SIBLING_CONTAINER_USER=root -e SANDBOXED_COMPILES_HOST_DIR=$(pwd)/compiles -e SANDBOXED_COMPILES_SIBLING_CONTAINERS=true -e TEXLIVE_IMAGE=$TEXLIVE_IMAGE -v /var/run/docker.sock:/var/run/docker.sock -v $(pwd):/app sharelatex/acceptance-test-runner:clsi-6.11.2'