Merge pull request #912 from prymitive/faketime

fix(ci): use custom cache key for cross compilation job

.travis.yml

@@ -11,9 +11,6 @@ defaults_go: &DEFAULTS_GO
     # so it forces new cache archive on every build
     # remove it before creating cache archive
     - rm -vf $HOME/.cache/go-build/log.txt
-    # force fixed mtime on all files so travis doesn't consider
-    # these as updated
-    - find $HOME/.cache/go-build/ -type f -exec touch -t 201909010000 {} \;
   env:
     - GO111MODULE=on
 
@@ -119,6 +116,11 @@ jobs:
       name: Cross compile binaries
       if: repo = prymitive/karma AND type != pull_request
       <<: *DEFAULTS_GO
+      env:
+        # add an extra env so we don't push cross compilation cache into the main archive
+        # as it slows down other jobs
+        - JOB=cc
+        - GO111MODULE=on
       before_script:
         # this stage needs to build everything including assets file and that
         # requires running webpack, so we need nodejs here