Unable to Upgrade libxml2: "Couldn't find manifest matching bottle checksum"

[aaronliu0130]

I have already removed .cache/Homebrew and ensured my core tap origin is on Homebrew/homebrew-core and I still can't perform the upgrade.

Running `brew update --preinstall`...
==> Upgrading 19 outdated packages:
ghostscript 9.53.3_1 -> 9.54.0
glib 2.68.1 -> 2.68.3
gradle 7.0 -> 7.1
guile 3.0.6 -> 3.0.7
imagemagick 7.0.11-10 -> 7.1.0-2
libheif 1.11.0_2 -> 1.12.0
libidn 1.36 -> 1.37
libxfixes 5.0.3 -> 6.0.0
libxml2 2.9.10_2 -> 2.9.12
libxslt 1.1.34_3 -> 1.1.34_4
openexr 2.5.5 -> 3.0.4
openjdk 15.0.2 -> 16.0.1
pcre 8.44 -> 8.45
perl 5.32.1_1 -> 5.34.0
romkatv/powerlevel10k/powerlevel10k 1.14.6 -> 1.16.0
python@3.9 3.9.4 -> 3.9.5
subversion 1.14.1 -> 1.14.1_2
util-linux 2.36.2 -> 2.37
zstd 1.4.9_1 -> 1.5.0
==> Downloading https://ghcr.io/v2/homebrew/core/libxml2/manifests/2.9.12
Already downloaded: /home/aaron/.cache/Homebrew/downloads/e348f7ee2ce5fb9eb60a6ef631e27dc2d1a8217e952961ddb866c3627f3b81bb--libxml2-2.9.12.bottle_manifest.json
==> Downloading https://ghcr.io/v2/homebrew/core/libxml2/manifests/2.9.12
######################################################################## 100.0%
Error: Couldn't find manifest matching bottle checksum.
Please report this issue:
  https://docs.brew.sh/Troubleshooting
/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/software_spec.rb:413:in `github_packages_manifest_resource_tab'
/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/software_spec.rb:366:in `fetch_tab'
/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/formula.rb:2392:in `fetch_bottle_tab'
/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/formula_installer.rb:1182:in `fetch'
/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/upgrade.rb:71:in `block in upgrade_formulae'
/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/upgrade.rb:53:in `map'
/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/upgrade.rb:53:in `upgrade_formulae'
/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/cmd/upgrade.rb:192:in `upgrade_outdated_formulae'
/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/cmd/upgrade.rb:110:in `upgrade'
/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/brew.rb:110:in `<main>'

brew doctor:

Please note that these warnings are just used to help the Homebrew maintainers
with debugging if you file an issue. If everything you use Homebrew for is
working fine: please don't worry or file an issue; just ignore this. Thanks!

Warning: Some installed formulae are deprecated or disabled.
You should find replacements for the following formulae:
  ilmbase

brew config:

HOMEBREW_VERSION: 3.3.12-53-g2ae21a5
ORIGIN: https://github.com/Homebrew/brew
HEAD: 2ae21a582a90571abb66b7fbceb04cd1e53785bf
Last commit: 2 days ago
Core tap ORIGIN: https://github.com/Homebrew/homebrew-core
Core tap HEAD: 4ab9416e21635c120f63da3eb55c32a142b0e82e
Core tap last commit: 7 months ago
Core tap branch: master
HOMEBREW_PREFIX: /home/linuxbrew/.linuxbrew
HOMEBREW_CASK_OPTS: []
HOMEBREW_CORE_GIT_REMOTE: https://github.com/Homebrew/homebrew-core
HOMEBREW_EDITOR: nano
HOMEBREW_MAKE_JOBS: 8
Homebrew Ruby: 2.6.8 => /home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/vendor/portable-ruby/2.6.8/bin/ruby
CPU: octa-core 64-bit skylake
Clang: N/A
Git: 2.17.1 => /usr/bin/git
Curl: 7.58.0 => /usr/bin/curl
Kernel: Linux 4.4.0-18362-Microsoft x86_64 GNU/Linux
OS: Ubuntu 18.04.5 LTS (bionic)
Host glibc: 2.27
/usr/bin/gcc: 7.5.0
/usr/bin/ruby: N/A
glibc: N/A
gcc@5: N/A
xorg: N/A

[carlocab]

This might be the issue:

Core tap last commit: 7 months ago

Can you run brew update, and show the output of brew config upon doing so?