Homebrewでwatchmanのdependencyのダウンロードに失敗する

Question

Homebrewでwatchmanをインストールしたいのですが、

~> brew install watchman

watchmanのdependencyであるgdbmのダウンロードに失敗し、watchmanがinstallできない状態です。Homebrewのアップデートも行い、XCodeの最新のものに変えましたがまだ失敗します。。

Updating Homebrew...
==> Installing dependencies for watchman: gdbm
==> Installing watchman dependency: gdbm
==> Downloading https://homebrew.bintray.com/bottles/gdbm-1.18.1.high_sierra.bottle.tar.gz

curl: (7) Couldn't connect to server
Error: Failed to download resource "gdbm"
Download failed: https://homebrew.bintray.com/bottles/gdbm-1.18.1.high_sierra.bottle.tar.gz
Warning: Bottle installation failed: building from source.
==> Downloading https://ftp.gnu.org/gnu/gdbm/gdbm-1.18.1.tar.gz

curl: (7) Couldn't connect to server
Trying a mirror...
==> Downloading https://ftpmirror.gnu.org/gdbm/gdbm-1.18.1.tar.gz

curl: (7) Couldn't connect to server
Error: An exception occurred within a child process:
  DownloadError: Failed to download resource "gdbm"
Download failed: https://ftpmirror.gnu.org/gdbm/gdbm-1.18.1.tar.gz

Answer 1

つbrew update