master branch does not exist

[swuecho]

==> Cloning https://github.com/WebAssembly/binaryen.git
Updating /home/hwu/.cache/Homebrew/emscripten--binaryen--git
fatal: couldn't find remote ref refs/heads/master
Error: Failed to download resource "emscripten--binaryen"
Failure while executing; `git fetch origin` exited with 128. Here's the output:
fatal: couldn't find remote ref refs/heads/master

checked
https://github.com/WebAssembly/binaryen.git , there is no master branch any more.

➜  zsh git:(master) ✗ uname -a
Linux bestqa 5.4.0-77-generic #86-Ubuntu SMP Thu Jun 17 02:35:03 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
➜  zsh git:(master) ✗ brew -v
Homebrew 3.2.0
Homebrew/homebrew-core (git revision 4ccfbea4752; last commit 2021-07-03)

[swuecho]

side note: in my Mac, there seems no problem at all.

[carlocab]

We can fix this by specifying the branch to use, like so:

diff --git a/Formula/binaryen.rb b/Formula/binaryen.rb
index 2032fb0f69..feabbacbaa 100644
--- a/Formula/binaryen.rb
+++ b/Formula/binaryen.rb
@@ -4,7 +4,7 @@ class Binaryen < Formula
   url "https://github.com/WebAssembly/binaryen/archive/version_101.tar.gz"
   sha256 "5d7cdec89957549f01b7c93f080d08827c87bbd4789a34694c740d15d077c041"
   license "Apache-2.0"
-  head "https://github.com/WebAssembly/binaryen.git"
+  head "https://github.com/WebAssembly/binaryen.git", branch: "main"
 
   bottle do
     sha256 cellar: :any, arm64_big_sur: "7c9f6e7464dd612d8fd5ecf97eb28be3a0e785807656971760355dbaee2ab308"

This should be fixed in Homebrew/homebrew-core#80540. We'd appreciate it if you opened a pull request for similar issues in the future.

[swuecho]

I was aware that the master to main transition caused the problem, but not sure how to fix it. Thanks!

[carlocab]

Sure. I've merged the fix, so just do brew update and then try again.

[swuecho]

I am using linux brew, so I submit a fix to that repo with same change https://github.com/Homebrew/linuxbrew-core/pull/23695