[librsvg: 3/9] gitlab-ci: Enable rustfmt.

[Jordan Petridis <jpetridis src gnome org>]

commit a496d7dd24587f926a0e075112ef9fefd992e6d0
Author: Jordan Petridis <jordanpetridis protonmail com>
Date:   Wed Feb 28 13:28:21 2018 +0200

    gitlab-ci: Enable rustfmt.

 .gitlab-ci.yml | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 06c1d3b2..0a0c0dca 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -161,17 +161,13 @@ debian:testing_release:
 #######################################################################
 
 # Configure and run rustfmt on nightly
-# Exits and builds fails if on bad format
+# Exits and builds fails on bad format
 rustfmt:
-  image: "rustlang/rust:nightly"
+  image: registry.gitlab.com/alatiera/rustfmt-oci-image/rustfmt:nightly
   stage: lint
-  variables:
-    CFG_RELEASE_CHANNEL: "nightly"
   script:
     - rustc --version && cargo --version
-    - cargo install rustfmt-nightly --force
     - cargo fmt --all -- --write-mode=diff
-  when: manual
 
 
 # Configure and run clippy on nightly