message: [CI] enable verbose full trace in e2e test
  Some e2e smoke tests fail due to panic. The current trace level is not
  sufficient to reveal what went wrong.  Run e2e tests with
  `RUST_BACKTRACE=full` for a verbose backtrace.
  Closes:
  Approved by: rexhoffman
diff: @@ -284,7 +284,7 @@ jobs:
  status=1
  failed_tests=
  while [[ $status != 0 && $retry < ${E2E_RETRIES} ]]; do
  - RUST_BACKTRACE=1 timeout --kill-after=370 --preserve-status 360 \
  + RUST_BACKTRACE=full timeout --kill-after=370 --preserve-status 360 \
  $libratest $target --test-threads 1 --exact --nocapture
  status=$?
  retry=$((retry + 1))
  