2026-01-06T22:20:56.2065259Z ##[section]Starting: Checkout dotnet/sdk@refs/pull/52335/merge to s
2026-01-06T22:20:56.2162378Z ==============================================================================
2026-01-06T22:20:56.2163051Z Task         : Get sources
2026-01-06T22:20:56.2163322Z Description  : Get sources from a repository. Supports Git, TfsVC, and SVN repositories.
2026-01-06T22:20:56.2163448Z Version      : 1.0.0
2026-01-06T22:20:56.2163628Z Author       : Microsoft
2026-01-06T22:20:56.2163886Z Help         : [More Information](https://go.microsoft.com/fwlink/?LinkId=798199)
2026-01-06T22:20:56.2163987Z ==============================================================================
2026-01-06T22:20:56.6949147Z Syncing repository: dotnet/sdk (GitHub)
2026-01-06T22:20:56.6956911Z Prepending Path environment variable with directory containing 'git.exe'.
2026-01-06T22:20:56.6964116Z ##[command]git version
2026-01-06T22:20:57.2348467Z git version 2.50.1.windows.1
2026-01-06T22:20:57.2350190Z ##[command]git lfs version
2026-01-06T22:20:57.4318072Z git-lfs/3.4.0 (GitHub; windows amd64; go 1.20.6; git d06d6e9e)
2026-01-06T22:20:57.4320909Z ##[command]git init "D:\a\_work\1\s"
2026-01-06T22:20:57.6220691Z Initialized empty Git repository in D:/a/_work/1/s/.git/
2026-01-06T22:20:57.6263500Z ##[command]git remote add origin https://github.com/dotnet/sdk
2026-01-06T22:20:57.6979012Z ##[command]git sparse-checkout disable
2026-01-06T22:20:57.7633946Z ##[command]git config gc.auto 0
2026-01-06T22:20:57.8216226Z ##[command]git config core.longpaths true
2026-01-06T22:20:57.8377636Z ##[command]git config --get-all http.https://github.com/dotnet/sdk.extraheader
2026-01-06T22:20:57.9137148Z ##[command]git config --get-all http.extraheader
2026-01-06T22:20:57.9708644Z ##[command]git config --get-regexp .*extraheader
2026-01-06T22:20:58.0295261Z ##[command]git config --get-all http.proxy
2026-01-06T22:20:58.0815749Z ##[command]git config http.version HTTP/1.1
2026-01-06T22:20:58.1433489Z ##[command]git config --get-all remote.origin.promisor
2026-01-06T22:20:58.1989537Z ##[command]git config --get-all remote.origin.partialclonefilter
2026-01-06T22:20:58.2594445Z ##[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/52335/merge:refs/remotes/pull/52335/merge
2026-01-06T22:20:59.1753743Z fatal: couldn't find remote ref refs/pull/52335/merge
2026-01-06T22:20:59.2304153Z ##[warning]Git fetch failed with exit code 128, back off 4.28 seconds before retry.
2026-01-06T22:21:03.4643698Z ##[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/52335/merge:refs/remotes/pull/52335/merge
2026-01-06T22:21:03.9043149Z fatal: couldn't find remote ref refs/pull/52335/merge
2026-01-06T22:21:03.9365972Z ##[warning]Git fetch failed with exit code 128, back off 5.481 seconds before retry.
2026-01-06T22:21:09.3910786Z ##[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/52335/merge:refs/remotes/pull/52335/merge
2026-01-06T22:21:09.8273536Z fatal: couldn't find remote ref refs/pull/52335/merge
2026-01-06T22:21:09.8536755Z ##[error]Git fetch failed with exit code: 128
2026-01-06T22:21:09.9751619Z ##[section]Finishing: Checkout dotnet/sdk@refs/pull/52335/merge to s