message: fix(CI): Reuse cached rustfmt
diff: @@ -4,6 +4,7 @@ language: rust
  env:
  global:
  - CRATE_NAME=cobalt
  + - RUSTFMT=0.8.3
  matrix:
  include:
  @@ -25,7 +26,7 @@ install:
  - source ~/.cargo/env || true
  - if ! which cargo-coveralls ; then cargo install cargo-travis ; fi
  - if ! which cargo-when ; then cargo install cargo-when ; fi
  - - travis_wait cargo when --channel stable install rustfmt --force --vers 0.8.3
  + - if [[ `rustfmt --version` != $RUSTFMT* ]] ; then travis_wait cargo when --channel stable install rustfmt --force --vers $RUSTFMT; fi
  - travis_wait cargo when --channel nightly install clippy --force || true
  script:
  