mac安装docker

→ ~ $ brew cask install docker
Updating Homebrew...
==> Auto-updated Homebrew!
Updated 1 tap (homebrew/core).
==> Updated Formulae
progress

==> Tapping homebrew/cask
Cloning into ‘/usr/local/Homebrew/Library/Taps/homebrew/homebrew-cask‘...
remote: Counting objects: 4083, done.
remote: Compressing objects: 100% (4061/4061), done.
remote: Total 4083 (delta 27), reused 668 (delta 18), pack-reused 0
Receiving objects: 100% (4083/4083), 1.28 MiB | 738.00 KiB/s, done.
Resolving deltas: 100% (27/27), done.
Tapped 0 formulae (4,092 files, 4MB)
==> Satisfying dependencies
==> Downloading https://download.docker.com/mac/stable/24312/Docker.dmg
^@^@
curl: (35) LibreSSL SSL_connect: SSL_ERROR_SYSCALL in connection to download.docker.com:443
Error: Download failed on Cask ‘docker‘ with message: Download failed: https://download.docker.com/mac/stable/24312/Docker.dmg