2026-01-09T21:54:42.8189970Z ##[section]Starting: Checkout dotnet/sdk@refs/pull/52031/merge to s
2026-01-09T21:54:42.8393250Z ==============================================================================
2026-01-09T21:54:42.8394880Z Task         : Get sources
2026-01-09T21:54:42.8395590Z Description  : Get sources from a repository. Supports Git, TfsVC, and SVN repositories.
2026-01-09T21:54:42.8395950Z Version      : 1.0.0
2026-01-09T21:54:42.8396490Z Author       : Microsoft
2026-01-09T21:54:42.8397240Z Help         : [More Information](https://go.microsoft.com/fwlink/?LinkId=798199)
2026-01-09T21:54:42.8397610Z ==============================================================================
2026-01-09T21:54:43.7231150Z Syncing repository: dotnet/sdk (GitHub)
2026-01-09T21:54:43.8191820Z ##[command]git version
2026-01-09T21:54:43.9077360Z git version 2.52.0
2026-01-09T21:54:43.9091610Z ##[command]git lfs version
2026-01-09T21:54:44.2432860Z git-lfs/3.7.1 (GitHub; darwin amd64; go 1.25.3)
2026-01-09T21:54:44.5379990Z ##[command]git init "/Users/runner/work/1/s"
2026-01-09T21:54:44.5477990Z Initialized empty Git repository in /Users/runner/work/1/s/.git/
2026-01-09T21:54:44.5479110Z hint: Using 'master' as the name for the initial branch. This default branch name
2026-01-09T21:54:44.5494470Z hint: will change to "main" in Git 3.0. To configure the initial branch name
2026-01-09T21:54:44.5496240Z hint: to use in all of your new repositories, which will suppress this warning,
2026-01-09T21:54:44.5498500Z hint: call:
2026-01-09T21:54:44.5525520Z hint:
2026-01-09T21:54:44.5528660Z hint: 	git config --global init.defaultBranch <name>
2026-01-09T21:54:44.5533770Z hint:
2026-01-09T21:54:44.5537790Z hint: Names commonly chosen instead of 'master' are 'main', 'trunk' and
2026-01-09T21:54:44.5541570Z hint: 'development'. The just-created branch can be renamed via this command:
2026-01-09T21:54:44.5546890Z hint:
2026-01-09T21:54:44.5586100Z hint: 	git branch -m <name>
2026-01-09T21:54:44.5648860Z hint:
2026-01-09T21:54:44.5653430Z hint: Disable this message with "git config set advice.defaultBranchName false"
2026-01-09T21:54:44.5667450Z ##[command]git remote add origin https://github.com/dotnet/sdk
2026-01-09T21:54:44.5700660Z ##[command]git sparse-checkout disable
2026-01-09T21:54:44.5800760Z ##[command]git config gc.auto 0
2026-01-09T21:54:44.5846140Z ##[command]git config core.longpaths true
2026-01-09T21:54:44.6422140Z ##[command]git config --get-all http.https://github.com/dotnet/sdk.extraheader
2026-01-09T21:54:44.6535510Z ##[command]git config --get-all http.extraheader
2026-01-09T21:54:44.6607890Z ##[command]git config --get-regexp .*extraheader
2026-01-09T21:54:44.6740200Z ##[command]git config --get-all http.proxy
2026-01-09T21:54:44.7309080Z ##[command]git config http.version HTTP/1.1
2026-01-09T21:54:44.7400160Z ##[command]git config --get-all remote.origin.promisor
2026-01-09T21:54:44.7468680Z ##[command]git config --get-all remote.origin.partialclonefilter
2026-01-09T21:54:44.7559440Z ##[command]git --config-env=http.extraheader=env_var_http.extraheader fetch --force --tags --prune --prune-tags --progress --no-recurse-submodules origin   +refs/heads/*:refs/remotes/origin/* +refs/pull/52031/merge:refs/remotes/pull/52031/merge
2026-01-09T21:54:45.0229510Z fatal: couldn't find remote ref refs/pull/52031/merge
2026-01-09T21:54:45.1590700Z ##[warning]Git fetch failed with exit code 128, back off 8.944 seconds before retry.
2026-01-09T21:54:54.1272360Z ##[command]git --config-env=http.extraheader=env_var_http.extraheader fetch --force --tags --prune --prune-tags --progress --no-recurse-submodules origin   +refs/heads/*:refs/remotes/origin/* +refs/pull/52031/merge:refs/remotes/pull/52031/merge
2026-01-09T21:54:54.5278220Z fatal: couldn't find remote ref refs/pull/52031/merge
2026-01-09T21:54:54.6667400Z ##[warning]Git fetch failed with exit code 128, back off 4.065 seconds before retry.
2026-01-09T21:54:58.7048100Z ##[command]git --config-env=http.extraheader=env_var_http.extraheader fetch --force --tags --prune --prune-tags --progress --no-recurse-submodules origin   +refs/heads/*:refs/remotes/origin/* +refs/pull/52031/merge:refs/remotes/pull/52031/merge
2026-01-09T21:54:59.0986900Z fatal: couldn't find remote ref refs/pull/52031/merge
2026-01-09T21:54:59.1570200Z ##[error]Git fetch failed with exit code: 128
2026-01-09T21:54:59.1937880Z ##[section]Finishing: Checkout dotnet/sdk@refs/pull/52031/merge to s