language: rust

rust:
  - nightly
  - beta
  - stable

script: cargo test

matrix:
  include:
    - rust: 1.31.0
      script: cargo check

language: rust

rust:
  - nightly
  - beta
  - stable

script: cargo test

matrix:
  include:
    - rust: 1.32.0
      script: cargo check

Raise minimum supported rustc version to 1.32
Raise minimum supported rustc version to 1.32

For the $(...)? specifier in macros.
