Adding patch suggested by Qasim Abdullah @travis-ci, with apt update in before_install

tilkinsc · tilkinsc · commit 7c580aed25ce · 2021-10-15T19:53:04.000-04:00
diff --git a/.travis.yml b/.travis.yml
@@ -15,6 +15,8 @@ branches:
   only:
     - master
 
+before_install:
+  - apt update
 
 before_script:
   - chmod +x travis.linux.sh
