Bump MSRV to 1.39.0 and test with all features

The 1.38.0 MSRV was incorrect as we weren't actually building with the
async-tokio feature which failed on 1.38.0.

Signed-off-by: Paul Osborne <[email protected]>

Author: posborne

.travis.yml

@@ -72,7 +72,7 @@ matrix:
 
     # MSRV
     - env: TARGET=x86_64-unknown-linux-gnu
-      rust: 1.38.0
+      rust: 1.39.0
       if: (branch = staging OR branch = trying) OR (type = pull_request AND branch = master)
 
 before_install:

CHANGELOG.md

@@ -10,6 +10,7 @@ Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## v0.4.0 - 2020-08-01
 
+- MSRV is now 1.39.0
 - Add support behind a feature flag for reading events from a line as a Stream via tokio. [#35](https://github.com/rust-embedded/gpio-cdev/pull/35).
 
 ## v0.3.0 - 2020-02-10

README.md

@@ -207,7 +207,7 @@ to be considered reliable.
 
 ## Minimum Supported Rust Version (MSRV)
 
-This crate is guaranteed to compile on stable Rust 1.38.0 and up. It *might*
+This crate is guaranteed to compile on stable Rust 1.39.0 and up. It *might*
 compile with older versions but that may change in any new patch release.
 
 ## License

ci/script.sh

@@ -3,15 +3,15 @@
 set -ex
 
 main() {
-    cross build --target $TARGET
-    cross build --target $TARGET --release
+    cross build --target $TARGET --all-features
+    cross build --target $TARGET --release --all-features
 
     if [ ! -z $DISABLE_TESTS ]; then
         return
     fi
 
-    cross test --target $TARGET
-    cross test --target $TARGET --release
+    cross test --target $TARGET --all-features
+    cross test --target $TARGET --release --all-features
 
     # No main binary, so skip the 'cross run' portion
     # cross run --target $TARGET