Update CI to use Rust 1.37

CHANGELOG.md

@@ -6,6 +6,7 @@ Blocks of changes will separated by version increments.
 
 ## **[Unreleased]**
 
+- [#839](https://github.com/wasmerio/wasmer/pull/839) Change supported version to stable Rust 1.37+
 - [#834](https://github.com/wasmerio/wasmer/pull/834) Fix panic when unwraping `wasmer` arguments
 - [#833](https://github.com/wasmerio/wasmer/pull/833) Add doc example of using ImportObject's new `maybe_with_namespace` method
 - [#832](https://github.com/wasmerio/wasmer/pull/832) Delete unused runtime ABI

README.md

@@ -177,7 +177,7 @@ nginx and Lua do not work on Windows - you can track the progress on [this issue
 </details>
 
 ## Building
-[![Rustc Version 1.36+](https://img.shields.io/badge/rustc-1.36+-red.svg?style=flat-square)](https://blog.rust-lang.org/2019/07/04/Rust-1.36.0.html)
+[![Rustc Version 1.37+](https://img.shields.io/badge/rustc-1.37+-red.svg?style=flat-square)](https://blog.rust-lang.org/2019/08/15/Rust-1.37.0.html)
 
 Wasmer is built with [Cargo](https://crates.io/), the Rust package manager.
 

azure-pipelines.yml

@@ -22,7 +22,7 @@ jobs:
       - script: cargo fmt --all -- --check
         displayName: Lint
     variables:
-      rust_toolchain: stable
+      rust_toolchain: '1.37.0'
 
   - job: Test
     strategy:
@@ -39,7 +39,7 @@ jobs:
           CARGO_HTTP_CHECK_REVOKE: false
         windows:
           imageName: "vs2017-win2016"
-          rust_toolchain: stable
+          rust_toolchain: '1.37.0'
     pool:
       vmImage: $(imageName)
     condition: in(variables['Build.SourceBranch'], 'refs/heads/master', 'refs/heads/staging', 'refs/heads/trying')
@@ -96,7 +96,7 @@ jobs:
           MACOSX_DEPLOYMENT_TARGET: 10.10
         windows:
           imageName: "vs2017-win2016"
-          rust_toolchain: stable
+          rust_toolchain: '1.37.0'
           # RUSTFLAGS: -Ctarget-feature=+crt-static
     pool:
       vmImage: $(imageName)
@@ -159,7 +159,7 @@ jobs:
           MACOSX_DEPLOYMENT_TARGET: 10.10
         windows:
           imageName: "vs2017-win2016"
-          rust_toolchain: stable
+          rust_toolchain: '1.37.0'
           # RUSTFLAGS: -Ctarget-feature=+crt-static
     pool:
       vmImage: $(imageName)