[librsvg] CI: Add jobs for rustc 1.27 and 1.28

[Jordan Petridis <jpetridis src gnome org>]

commit 34094a1ea458b167d8f2cc63175ff29df6c7f410
Author: Jordan Petridis <jordanpetridis protonmail com>
Date:   Fri Aug 3 04:54:36 2018 +0000

    CI: Add jobs for rustc 1.27 and 1.28

 .gitlab-ci.yml | 22 +++++++++++++++++++---
 1 file changed, 19 insertions(+), 3 deletions(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 7494f25c..d6f685c5 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -13,6 +13,8 @@ variables:
   I386_UBUNTU_BIONIC:        "registry.gitlab.gnome.org/gnome/librsvg-oci-images/i386/ubuntu:18.04"
 
   RUSTC_1_26:                "registry.gitlab.gnome.org/gnome/librsvg-oci-images/rustc:1.26"
+  RUSTC_1_27:                "registry.gitlab.gnome.org/gnome/librsvg-oci-images/rustc:1.27"
+  RUSTC_1_28:                "registry.gitlab.gnome.org/gnome/librsvg-oci-images/rustc:1.28"
 
   RUSTFMT_NIGHTLY:           "registry.gitlab.com/alatiera/rustfmt-oci-image/rustfmt:nightly"
   CLIPPY_NIGHTLY:            "registry.gitlab.gnome.org/gnome/librsvg-oci-images/clippy:nightly"
@@ -98,7 +100,7 @@ stages:
 # STAGE 1 TESTS
 ########################################################################
 
-fedora:test:
+fedora test:
   image: $AMD64_FEDORA_LATEST
   stage: test
   variables:
@@ -132,7 +134,7 @@ clippy:
 
 tarball:
   image: $AMD64_FEDORA_LATEST
-  stage: distcheck
+  stage: lint
   variables:
     LIBRSVG_DEBUG: "yes"
   script:
@@ -193,9 +195,23 @@ debian:testing_release_i386:
 # STAGE 3 RUSTC TESTS
 #######################################################################
 
-rustc:1_26:
+rustc 1.26 1:
   image: $RUSTC_1_26
   variables:
     LIBRSVG_DEBUG: "yes"
   <<: *rustc
   <<: *stage_3
+
+  rustc 1.27 2:
+  image: $RUSTC_1_27
+  variables:
+    LIBRSVG_DEBUG: "yes"
+  <<: *rustc
+  <<: *stage_3
+
+  rustc 1.28 3:
+  image: $RUSTC_1_28
+  variables:
+    LIBRSVG_DEBUG: "yes"
+  <<: *rustc
+  <<: *stage_3