Create basic Debian Trixie image

.gitlab-ci.yml

+build:
+  image: docker:latest
+  stage: build
+  services:
+    - docker:dind
+  before_script:
+    - docker login -u "$CI_REGISTRY_USER" -p "$CI_REGISTRY_PASSWORD" $CI_REGISTRY
+  script:
+    - |
+      if [[ "$CI_COMMIT_BRANCH" == "$CI_DEFAULT_BRANCH" ]]; then
+        tag=""
+        echo "Running on default branch '$CI_DEFAULT_BRANCH': tag = 'latest'"
+      else
+        tag=":$CI_COMMIT_REF_SLUG"
+        echo "Running on branch '$CI_COMMIT_BRANCH': tag = $tag"
+      fi
+    - docker build --pull -f Dockerfile -t "$CI_REGISTRY_IMAGE${tag}" .
+    - docker push "$CI_REGISTRY_IMAGE${tag}"
\ No newline at end of file

Dockerfile

+FROM debian:trixie
+
+ENV CARGO_HOME="$HOME/.cargo"
+
+RUN apt update && \
+    apt install curl wget zip unzip rustup && \
+    rm -rf /var/lib/apt/lists/*
+
+RUN rustup install stable -y && \
+    rustup default stable -y && \
+    rustup install nightly && \
+    cargo install junitify
\ No newline at end of file