CI: Show rustc and cargo version

Signed-off-by: Maxime “pep” Buquet <pep@bouah.net>

.gitlab-ci.yml

@@ -6,12 +6,21 @@ variables:
   FEATURES: ""
   RUST_BACKTRACE: "full"
 
+.show-version:
+  before_script:
+    - rustc --version
+    - cargo --version
+
 .stable:
   image: rust:latest
+  extends:
+    - .show-version
 
 .nightly:
   image: rustlang/rust:nightly
   allow_failure: true  # It's not often, but it happens nightly breaks, surprisingly.
+  extends:
+    - .show-version
 
 .test:
   stage: test