Format code and add Travis checks for formatting (#5)

* Apply rustfmt style to code * Fail Travis builds that need rustfmt changes
ryanq · Dec 31, 2018 · fb8e338 · fb8e338
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commit fb8e338
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diff --git a/.travis.yml b/.travis.yml
@@ -20,8 +20,10 @@ rust:
 
 before_script:
   - export PATH=$HOME/.cargo/bin:$PATH # for cargo subcommands
+  - rustup component add rustfmt-preview
 
 script:
+  - cargo fmt -- --check
   - cargo build
   - cargo test
   # - cargo bench