1. Create a blank namespace on a cluster (e.g. OCP4.14) with OpenShift Pipelines (aka Tekton) 0.53.x or 0.56.x

2. Make sure you are logged in and working in the namespace created in step 1.

3. Unpack the archive case03835390.tar.gz to an appropriate location.

4. Create the required resources (Pipeline, ConfigMap, ImageStream) with 'oc apply -k kustomize'. ('kustomize' is a directory produced in step 3.)

5. Start a build by creating an instance of PipelineRun with 'oc create -f skopeo-test-pipelinerun.yaml'.

6. Observe the described error either by looking at the log output of the build in the web UI or with 'oc logs pod/skopeo-test-xxxxx-build-image-pod' (where xxxx is a placeholder for the unique identifier of the PipelineRun to be determined with 'oc get pr').

7. Edit the BuildConfig 'build-input' (entry 'Dockerfile') and change the '8.10' in the first line to '8.9'

8. Rerun the build with 'oc create -f skopeo-test-pipelinerun.yaml'.

9. Observe that the build succeeded.