我尝试在Mac OSX sierra上使用brew安装sbt，但我收到以下错误：
brew install sbt
Updating Homebrew...
==> Using the sandbox
==> Downloading https://dl.bintray.com/sbt/native-packages/sbt/0.13.13/sbt-0.13.
curl: (7) Failed to connect to dl.bintray.com port 443: Operation timed out
Error: Failed to download resource "sbt"
Download failed: https://dl.bintray.com/sbt/native-packages/sbt/0.13.13/sbt-0.13.13.tgz
我试图ping dl.bintray.com，但是暂停了。