2026-02-12T13:39:49.1432170Z ##[section]Starting: Checkout dotnet/arcade-services@refs/pull/5941/merge to s
2026-02-12T13:39:49.1530853Z ==============================================================================
2026-02-12T13:39:49.1531586Z Task         : Get sources
2026-02-12T13:39:49.1531828Z Description  : Get sources from a repository. Supports Git, TfsVC, and SVN repositories.
2026-02-12T13:39:49.1531945Z Version      : 1.0.0
2026-02-12T13:39:49.1532116Z Author       : Microsoft
2026-02-12T13:39:49.1532373Z Help         : [More Information](https://go.microsoft.com/fwlink/?LinkId=798199)
2026-02-12T13:39:49.1532468Z ==============================================================================
2026-02-12T13:39:49.5497742Z Syncing repository: dotnet/arcade-services (GitHub)
2026-02-12T13:39:49.5504962Z Prepending Path environment variable with directory containing 'git.exe'.
2026-02-12T13:39:49.5511624Z ##[command]git version
2026-02-12T13:39:49.7415332Z git version 2.50.1.windows.1
2026-02-12T13:39:49.7442887Z ##[command]git lfs version
2026-02-12T13:39:49.8305774Z git-lfs/3.4.0 (GitHub; windows amd64; go 1.20.6; git d06d6e9e)
2026-02-12T13:39:49.8448831Z ##[command]git init "D:\a\_work\1\s"
2026-02-12T13:39:49.8920151Z Initialized empty Git repository in D:/a/_work/1/s/.git/
2026-02-12T13:39:49.8956458Z ##[command]git remote add origin https://github.com/dotnet/arcade-services
2026-02-12T13:39:49.9362626Z ##[command]git sparse-checkout disable
2026-02-12T13:39:49.9777397Z ##[command]git config gc.auto 0
2026-02-12T13:39:50.0157586Z ##[command]git config core.longpaths true
2026-02-12T13:39:50.0191372Z ##[command]git config --get-all http.https://github.com/dotnet/arcade-services.extraheader
2026-02-12T13:39:50.0616911Z ##[command]git config --get-all http.extraheader
2026-02-12T13:39:50.0997922Z ##[command]git config --get-regexp .*extraheader
2026-02-12T13:39:50.1398266Z ##[command]git config --get-all http.proxy
2026-02-12T13:39:50.1774006Z ##[command]git config http.version HTTP/1.1
2026-02-12T13:39:50.2177061Z ##[command]git config --get-all remote.origin.promisor
2026-02-12T13:39:50.2577973Z ##[command]git config --get-all remote.origin.partialclonefilter
2026-02-12T13:39:50.3064871Z ##[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/5941/merge:refs/remotes/pull/5941/merge
2026-02-12T13:39:50.9241620Z fatal: couldn't find remote ref refs/pull/5941/merge
2026-02-12T13:39:50.9886336Z ##[warning]Git fetch failed with exit code 128, back off 8.818 seconds before retry.
2026-02-12T13:39:59.7364145Z ##[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/5941/merge:refs/remotes/pull/5941/merge
2026-02-12T13:40:00.1951244Z fatal: couldn't find remote ref refs/pull/5941/merge
2026-02-12T13:40:00.2203275Z ##[warning]Git fetch failed with exit code 128, back off 4.862 seconds before retry.
2026-02-12T13:40:05.0533701Z ##[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/5941/merge:refs/remotes/pull/5941/merge
2026-02-12T13:40:05.5704151Z fatal: couldn't find remote ref refs/pull/5941/merge
2026-02-12T13:40:05.6040649Z ##[error]Git fetch failed with exit code: 128
2026-02-12T13:40:05.6091693Z ##[section]Finishing: Checkout dotnet/arcade-services@refs/pull/5941/merge to s