roachtest: jepsen/3/register/majority-ring-start-kill-2 failed on release-2.1

SHA: https://github.com/cockroachdb/cockroach/commits/def23eda0df4250b0113997bc223103a43508179

Parameters:

To repro, try:

# Don't forget to check out a clean suitable branch and experiment with the
# stress invocation until the desired results present themselves. For example,
# using stressrace instead of stress and passing the '-p' stressflag which
# controls concurrency.
./scripts/gceworker.sh start && ./scripts/gceworker.sh mosh
cd ~/go/src/github.com/cockroachdb/cockroach && \
make stress TESTS=jepsen/3/register/majority-ring-start-kill-2 PKG=roachtest TESTTIMEOUT=5m STRESSFLAGS='-stderr=false -maxtime 20m -timeout 10m'

Failed test: https://teamcity.cockroachdb.com/viewLog.html?buildId=882125&tab=buildLog

    test.go:498,jepsen.go:232,jepsen.go:285: /home/agent/work/.go/bin/roachprod run teamcity-882125-jepsen-3:6 -- bash -e -c "\
        cd /mnt/data1/jepsen/cockroachdb && set -eo pipefail && \
         ~/lein run test \
           --tarball file://${PWD}/cockroach.tgz \
           --username ${USER} \
           --ssh-private-key ~/.ssh/id_rsa \
           --os ubuntu \
           --time-limit 300 \
           --concurrency 30 \
           --recovery-time 25 \
           --test-count 1 \
           -n 10.128.0.31 -n 10.128.0.18 -n 10.128.0.30 -n 10.128.0.17 -n 10.128.0.12 \
           --test register --nemesis majority-ring --nemesis2 start-kill-2 \
        > invoke.log 2>&1 \
        " returned:
        stderr:

        stdout:
        Error:  Process exited with status 255
        : exit status 1

cockroachdb / cockroach

roachtest: jepsen/3/register/majority-ring-start-kill-2 failed on release-2.1 #29564