Replace Appveyor and Travis with Github Actions (#1309)

* Experiment with github actions

* Only use stable for testing simplicity

* Disable fail-fast

* Never fail when rustup target add fails

* Update rust.yml

* Update rust.yml

* Update rust.yml

* Update rust.yml

* Update rust.yml

* Update rust.yml

* Update rust.yml

* Update rust.yml

* Update rust.yml

* Update rust.yml

* Update rust.yml

* Update rust.yml

* Update rust.yml

* Update rust.yml

* Update rust.yml

* Update rust.yml

* Update rust.yml

* Update rust.yml

* Update rust.yml

* Update rust.yml

* Update rust.yml

* Update rust.yml

* Update rust.yml

* Update rust.yml

* Update rust.yml

* Update rust.yml

* Update rust.yml

* Update rust.yml

* Update rust.yml

* Update rust.yml

* Update rust.yml

* Update rust.yml

* Split formatting check into separate job

* Update and rename rust.yml to ci.yml

* Attempt to add web support

* Fix things

* Fixings

* The "I'm not familiar with YAML" update

* The empty string update

* Fix target interpolation

* Add gcc-multilib on linux x86

* Update ci.yml

* Update ci.yml

* Update ci.yml

* Update ci.yml

* Update ci.yml

* Update ci.yml

* Use correct host on Windows GNU

* Update ci.yml

* Update ci.yml

* in my defense it was like 2 AM when I wrote this

* Update ci.yml

* Update ci.yml

* Update ci.yml

* Update ci.yml

* try caching

* Update ci.yml

* Update ci.yml

* Update on

* Update ci.yml

* Update ci.yml

* Remove travis and appveyor testing

* Cache entire cargo folder

* Make cargo cache key more appropriately named

* Reduce key collisions

* Make key work

* Add publish workflow and path qualifiers

* Remove -f in cargo install cargo-web

* continue-on-error for cargo web

* ping

* Try to shorten matrix

* attempt two

* attempt three

* attempt four

* Use bash

* web feature formatting

* ping

.github/workflows/publish.yml

@@ -0,0 +1,18 @@
+name: Publish
+
+on:
+  push:
+    branches: [master]
+    paths: "Cargo.toml"
+
+jobs:
+  Publish:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v1
+    - uses: hecrj/setup-rust-action@v1
+      with:
+        rust-version: stable
+        components: rustfmt
+    - name: Publish to crates.io
+      run: cargo publish --token ${{ secrets.cratesio_token }}