diff --git a/Jenkinsfile b/Jenkinsfile
index d86810f..2787b83 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -28,6 +28,8 @@ def resolveImageCommit(String image) {
   sh(
     script: """
       set -eu
+      id
+      whoami
       docker pull "${image}" >/dev/null
       docker image inspect --format='{{ index .Config.Labels "git-commit" }}' "${image}"
     """,