Pass --tty so jenkins can log docker output.  Comment out sending email about failed tests for now.

Change-Id: I86f5af09a7aca8ef448f79198c3bc088d8b12cc2
diff --git a/makefiles/tools.mk b/makefiles/tools.mk
index 4aafcbd..03aeb9d 100644
--- a/makefiles/tools.mk
+++ b/makefiles/tools.mk
@@ -30,7 +30,13 @@
 
 docker-run     = docker run --rm --user $$(id -u):$$(id -g)#   # Docker command stem
 docker-run-app = $(docker-run) -v ${CURDIR}:/app#              # w/filesystem mount
-is-stdin       = $(shell test -t 0 && echo "-it")
+
+## -----------------------------------------------------------------------
+## --interactive: Attach streams if running interactively (!jenkins)
+## --tty        : Attach stdout else jenkins::docker is silent.
+## -----------------------------------------------------------------------
+is-stdin       = $(shell test -t 0 && { echo '--interactive' })
+is-stdin       += --tty
 
 # Docker volume mounts: container:/app/release <=> localhost:{pwd}/release
 vee-golang     = -v gocache-${VOLTHA_TOOLS_VERSION}:/go/pkg
diff --git a/tests/bbr.groovy b/tests/bbr.groovy
index 397551e..f515ba7 100644
--- a/tests/bbr.groovy
+++ b/tests/bbr.groovy
@@ -122,7 +122,7 @@
   post {
     always {
       archiveArtifacts artifacts: '*.logs'
-      step([$class: 'Mailer', notifyEveryUnstableBuild: true, recipients: "joey@opennetworking.org", sendToIndividuals: false])
+      // step([$class: 'Mailer', notifyEveryUnstableBuild: true, recipients: "joey@opennetworking.org", sendToIndividuals: false])
     }
     success {
       plot([