message: Travis: Install OCaml (needed by ocaml-sys build step)
  Disable osx for now
diff: @@ -2,14 +2,18 @@ language: rust
  rust:
  - nightly-2020-10-24
  +cache:
  + directories:
  + - $HOME/.opam
  +
  jobs:
  include:
  - os: linux
  dist: focal
  name: Ubuntu Focal (20.04)
  - - os: osx
  - name: macOS Catalina (10.15)
  - osx_image: xcode12
  + #- os: osx
  + # name: macOS Catalina (10.15)
  + # osx_image: xcode12
  sudo: false
  @@ -17,6 +21,11 @@ env:
  global:
  - RUST_BACKTRACE=1
  - SODIUM_USE_PKG_CONFIG=1
  + - OCAML_VERSION=4.09
  +
  +install:
  + - test -e .travis-ocaml.sh || wget https://raw.githubusercontent.com/ocaml/ocaml-ci-scripts/master/.travis-ocaml.sh
  + - bash -ex .travis-ocaml.sh
  addons:
  apt:
  