From c6bce8a130446e380b9cc1a7f3bc52e7f8f2cf46 Mon Sep 17 00:00:00 2001
From: Josh Stone <cuviper@gmail.com>
Date: Wed, 16 May 2018 12:19:47 -0700
Subject: [PATCH] test i128 only on newer rustc

---
 .travis.yml     |  2 ++
 ci/rustup.sh    |  2 +-
 ci/test_full.sh | 14 ++++++++++++--
 3 files changed, 15 insertions(+), 3 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index 8ada3f7b..8a4946c9 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,8 @@
 language: rust
 rust:
   - 1.15.0
+  - 1.20.0
+  - 1.25.0
   - stable
   - beta
   - nightly
diff --git a/ci/rustup.sh b/ci/rustup.sh
index dc1aa141..e8d1ba74 100755
--- a/ci/rustup.sh
+++ b/ci/rustup.sh
@@ -5,7 +5,7 @@
 set -ex
 
 export TRAVIS_RUST_VERSION
-for TRAVIS_RUST_VERSION in 1.15.0 stable beta nightly; do
+for TRAVIS_RUST_VERSION in 1.15.0 1.20.0 1.25.0 stable beta nightly; do
     run="rustup run $TRAVIS_RUST_VERSION"
     $run cargo build --verbose
     $run $PWD/ci/test_full.sh
diff --git a/ci/test_full.sh b/ci/test_full.sh
index d9cf996d..6521bfc6 100755
--- a/ci/test_full.sh
+++ b/ci/test_full.sh
@@ -18,5 +18,15 @@ for feature in rand serde; do
   cargo test --verbose --no-default-features --features="$feature"
 done
 
-cargo build --all-features
-cargo test --all-features
+# test `i128` and all features together
+if [[ "$TRAVIS_RUST_VERSION" =~ ^(nightly|beta|stable)$ ]]; then
+  cargo build --verbose --features=i128
+  cargo test --verbose --features=i128
+
+  cargo build --all-features
+  cargo test --all-features
+else
+  # all except `i128`
+  cargo build --features="rand serde"
+  cargo test --features="rand serde"
+fi