snap: allow job failure

This thing still fails with "need manual review" error.

Try devmode (again)--since we got approved once, maybe it works now?

ref 49849745f1
ref d9ab83d057
ref #11482

.travis.yml

@@ -188,6 +188,12 @@ jobs:
         script: ci/snap/deploy.sh
         on:
           branch: master
+  allow_failures:
+    - env:
+      - LC_ALL: C.UTF-8
+      - LANG: C.UTF-8
+      - SNAPCRAFT_ENABLE_SILENT_REPORT: y
+      - SNAPCRAFT_ENABLE_DEVELOPER_DEBUG: y
   fast_finish: true
 
 before_install: ci/before_install.sh

snap/snapcraft.yaml

@@ -12,7 +12,7 @@ description: |
  For lots more details, see the wiki!
 
 grade: stable  # must be 'stable' to release into candidate/stable channels
-confinement: classic
+confinement: devmode
 
 apps:
     nvim: