message: Add retry logic to Travis CI
diff: @@ -2,6 +2,7 @@ arch:
  - arm64
  language: rust
  +install: travis_retry
  rust:
  - nightly-2019-08-15
  @@ -14,7 +15,7 @@ script:
  # Sccache
  # - curl -L https://github.com/mozilla/sccache/releases/download/0.2.10/sccache-0.2.10-x86_64-unknown-linux-musl.tar.gz | tar xzf -
  # - export RUSTC_WRAPPER=`pwd`/sccache-0.2.10-x86_64-unknown-linux-musl/sccache
  - - test -f /home/travis/.cargo/bin/sccache || cargo install sccache
  + - test -f /home/travis/.cargo/bin/sccache || travis_retry cargo install sccache
  - export RUSTC_WRAPPER=/home/travis/.cargo/bin/sccache
  - mkdir -p /home/travis/.sccache/
  - export SCCACHE_DIR="/home/travis/.sccache/"
  