Try going back to docker for now

.gitlab-ci.yml

@@ -4,14 +4,13 @@ stages:
 build:
   stage: build
   tags:
-    - nix
-    - podman
+    - docker
   script:
-    - podman login -u $CI_REGISTRY_USER -p $CI_REGISTRY_PASSWORD $CI_REGISTRY
+    - docker login -u $CI_REGISTRY_USER -p $CI_REGISTRY_PASSWORD $CI_REGISTRY
     - |-
       for img in vm-test; do
         nix build ".#${img}"
-        podman load -i result
-        podman tag "${img}" $CI_REGISTRY/greg/ci-images/${img}:latest
-        podman push "$CI_REGISTRY/greg/ci-images/${img}:latest"
+        docker load -i result
+        docker tag "${img}" $CI_REGISTRY/greg/ci-images/${img}:latest
+        docker push "$CI_REGISTRY/greg/ci-images/${img}:latest"
       done