[ARROW-4680] [CI] [Rust] Travis CI builds fail with latest Rust 1.34.0-nightly (2019-02-25)

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Fix Version/s: 0.13.0
• Component/s: Continuous Integration, Rust
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/21209
• Assignee: Chao Sun
• Reporter: Neville Dipale
• Created: 26/Feb/19 05:16
• Updated: 11/Jan/23 07:35
• Resolved: 26/Feb/19 06:03

Description

There's an unstable feature that's now marked for stabilisation in 1.34, and as a result Travis builds are failing. This is affecting all PRs that have been created or updated from 26 Feb 2019.

AppVeyor only emits warnings.

Issue Links

• links to: GitHub Pull Request #3756
• links to: GitHub Pull Request #3757