2026-01-09T15:34:11.1785793Z ##[section]Starting: Checkout dotnet/arcade-services@refs/pull/5742/merge to s
2026-01-09T15:34:11.1906925Z ==============================================================================
2026-01-09T15:34:11.1907469Z Task         : Get sources
2026-01-09T15:34:11.1907722Z Description  : Get sources from a repository. Supports Git, TfsVC, and SVN repositories.
2026-01-09T15:34:11.1907835Z Version      : 1.0.0
2026-01-09T15:34:11.1908030Z Author       : Microsoft
2026-01-09T15:34:11.1908331Z Help         : [More Information](https://go.microsoft.com/fwlink/?LinkId=798199)
2026-01-09T15:34:11.1908444Z ==============================================================================
2026-01-09T15:34:11.6538281Z Syncing repository: dotnet/arcade-services (GitHub)
2026-01-09T15:34:11.6546416Z Prepending Path environment variable with directory containing 'git.exe'.
2026-01-09T15:34:11.6554249Z ##[command]git version
2026-01-09T15:34:11.7603519Z git version 2.50.1.windows.1
2026-01-09T15:34:11.7631455Z ##[command]git lfs version
2026-01-09T15:34:11.8503015Z git-lfs/3.4.0 (GitHub; windows amd64; go 1.20.6; git d06d6e9e)
2026-01-09T15:34:11.8672519Z ##[command]git init "D:\a\_work\1\s"
2026-01-09T15:34:11.9154709Z Initialized empty Git repository in D:/a/_work/1/s/.git/
2026-01-09T15:34:11.9190448Z ##[command]git remote add origin https://github.com/dotnet/arcade-services
2026-01-09T15:34:11.9643190Z ##[command]git sparse-checkout disable
2026-01-09T15:34:12.0127590Z ##[command]git config gc.auto 0
2026-01-09T15:34:12.0502759Z ##[command]git config core.longpaths true
2026-01-09T15:34:12.0527524Z ##[command]git config --get-all http.https://github.com/dotnet/arcade-services.extraheader
2026-01-09T15:34:12.1009557Z ##[command]git config --get-all http.extraheader
2026-01-09T15:34:12.1460427Z ##[command]git config --get-regexp .*extraheader
2026-01-09T15:34:12.1793087Z ##[command]git config --get-all http.proxy
2026-01-09T15:34:12.2522316Z ##[command]git config http.version HTTP/1.1
2026-01-09T15:34:12.2713029Z ##[command]git config --get-all remote.origin.promisor
2026-01-09T15:34:12.3556495Z ##[command]git config --get-all remote.origin.partialclonefilter
2026-01-09T15:34:12.3572498Z ##[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/5742/merge:refs/remotes/pull/5742/merge
2026-01-09T15:34:12.8376231Z fatal: couldn't find remote ref refs/pull/5742/merge
2026-01-09T15:34:12.9860196Z ##[warning]Git fetch failed with exit code 128, back off 6.644 seconds before retry.
2026-01-09T15:34:19.4969443Z ##[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/5742/merge:refs/remotes/pull/5742/merge
2026-01-09T15:34:19.8853854Z fatal: couldn't find remote ref refs/pull/5742/merge
2026-01-09T15:34:19.9117461Z ##[warning]Git fetch failed with exit code 128, back off 1.883 seconds before retry.
2026-01-09T15:34:21.7791554Z ##[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/5742/merge:refs/remotes/pull/5742/merge
2026-01-09T15:34:22.1652846Z fatal: couldn't find remote ref refs/pull/5742/merge
2026-01-09T15:34:22.1886989Z ##[error]Git fetch failed with exit code: 128
2026-01-09T15:34:22.1961054Z ##[section]Finishing: Checkout dotnet/arcade-services@refs/pull/5742/merge to s