proc-macro-error 0.4.12

Almost drop-in replacement to panics in proc-macros
Documentation
language: rust
rust:
  - stable
  - beta
  - nightly
script:
  - cargo test --all
matrix:
  include:
    - rust: 1.31.0
      script: cargo test --tests # skip doctests
  allow_failures:
    - rust: nightly
  fast_finish: true


notifications:
  email:
    on_success: never