From ced6a7643a4453f42e38b97465852fbb82336faa Mon Sep 17 00:00:00 2001
From: Jan Teske <jteske@posteo.net>
Date: Sun, 19 Apr 2020 13:39:48 +0200
Subject: [PATCH] Document and test MSRV 1.31.0

---
 .travis.yml | 2 ++
 README.md   | 5 +++++
 2 files changed, 7 insertions(+)

diff --git a/.travis.yml b/.travis.yml
index 02cccb3..fd240d2 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,6 +6,8 @@ matrix:
   include:
     - rust: stable
     - rust: nightly
+    # MSRV
+    - rust: 1.31.0
 
 branches:
   only:
diff --git a/README.md b/README.md
index 6b0ed33..06aee79 100644
--- a/README.md
+++ b/README.md
@@ -24,6 +24,11 @@ teams][teams].
 
 ## [Documentation](https://docs.rs/r0)
 
+## Minimum Supported Rust Version (MSRV)
+
+This crate is guaranteed to compile on stable Rust 1.31.0 and up. It *might*
+compile with older versions but that may change in any new patch release.
+
 ## License
 
 Licensed under either of