[AVRO-2986] Resolve Travis-CI build warnings

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 1.10.0
• Component/s: release
• Assignee: Unassigned
• Reporter: Alex Zbarcea
• Created: 23/Nov/20 15:17
• Updated: 23/Nov/20 15:18

Description

Current Travis-CI builds reports warnings for the build:
(more: https://travis-ci.com/github/apache/avro/jobs/445894605/config)