From 75321422474c7ec02f2342623274fb84a34110bf Mon Sep 17 00:00:00 2001
From: Martin Geisler <martin@geisler.net>
Date: Tue, 23 May 2017 09:11:52 +0200
Subject: [PATCH] travis: also test with minimum supported Rust version

The 1.2.0 release increased the minimum supported version of Rust from
below 1.11.0 to 1.13.0 due to the introduction of code that use the
"?" operator. This caused unexpected build failures in dependent
crates, such as clap.

This PR updates Travis to also test against the current minimum
version. Changes to this version will thus fail PRs and it will become
an active decision to bump the minimum supported Rust version.

Between the commit was originally made and today, the minimum version
increased further and the earliest version where I can get the crate
to compile is now Rust 1.24.0.

Fixes #26.
---
 .travis.yml | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/.travis.yml b/.travis.yml
index 0e49a67..0dce10d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,5 +1,7 @@
 language: rust
-rust: stable
+rust:
+  - 1.24.0
+  - stable
 os: linux
 script:
   - cargo build --verbose
@@ -7,6 +9,7 @@ script:
   - rustdoc --test README.md -L target/debug -L target/debug/deps
   - cargo doc
 after_success: |
+  [ $TRAVIS_RUST_VERSION = stable ] &&
   [ $TRAVIS_BRANCH = master ] &&
   [ $TRAVIS_PULL_REQUEST = false ] &&
   echo '<meta http-equiv=refresh content=0;url=unicode_segmentation/index.html>' > target/doc/index.html &&