2026-03-09T13:23:31.4500751Z ##[section]Starting: Checkout dotnet/sdk@refs/pull/53328/merge to s
2026-03-09T13:23:31.4623071Z ==============================================================================
2026-03-09T13:23:31.4624296Z Task         : Get sources
2026-03-09T13:23:31.4624574Z Description  : Get sources from a repository. Supports Git, TfsVC, and SVN repositories.
2026-03-09T13:23:31.4624690Z Version      : 1.0.0
2026-03-09T13:23:31.4624870Z Author       : Microsoft
2026-03-09T13:23:31.4625154Z Help         : [More Information](https://go.microsoft.com/fwlink/?LinkId=798199)
2026-03-09T13:23:31.4625396Z ==============================================================================
2026-03-09T13:23:31.9151041Z Syncing repository: dotnet/sdk (GitHub)
2026-03-09T13:23:31.9159093Z Prepending Path environment variable with directory containing 'git.exe'.
2026-03-09T13:23:31.9166768Z ##[command]git version
2026-03-09T13:23:32.3800255Z git version 2.50.1.windows.1
2026-03-09T13:23:32.3830144Z ##[command]git lfs version
2026-03-09T13:23:32.5506257Z git-lfs/3.4.0 (GitHub; windows amd64; go 1.20.6; git d06d6e9e)
2026-03-09T13:23:32.5724053Z ##[command]git init "D:\a\_work\1\s"
2026-03-09T13:23:32.6453812Z Initialized empty Git repository in D:/a/_work/1/s/.git/
2026-03-09T13:23:32.6511071Z ##[command]git remote add origin https://github.com/dotnet/sdk
2026-03-09T13:23:32.7282420Z ##[command]git sparse-checkout disable
2026-03-09T13:23:32.7921884Z ##[command]git config gc.auto 0
2026-03-09T13:23:32.8605021Z ##[command]git config core.longpaths true
2026-03-09T13:23:32.8832302Z ##[command]git config --get-all http.https://github.com/dotnet/sdk.extraheader
2026-03-09T13:23:32.9500551Z ##[command]git config --get-all http.extraheader
2026-03-09T13:23:33.0102761Z ##[command]git config --get-regexp .*extraheader
2026-03-09T13:23:33.0752292Z ##[command]git config --get-all http.proxy
2026-03-09T13:23:33.1369501Z ##[command]git config http.version HTTP/1.1
2026-03-09T13:23:33.2062085Z ##[command]git config --get-all remote.origin.promisor
2026-03-09T13:23:33.2686310Z ##[command]git config --get-all remote.origin.partialclonefilter
2026-03-09T13:23:33.3284202Z ##[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/53328/merge:refs/remotes/pull/53328/merge
2026-03-09T13:23:34.1125372Z fatal: couldn't find remote ref refs/pull/53328/merge
2026-03-09T13:23:34.1834072Z ##[warning]Git fetch failed with exit code 128, back off 2.505 seconds before retry.
2026-03-09T13:23:36.6278070Z ##[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/53328/merge:refs/remotes/pull/53328/merge
2026-03-09T13:23:37.0932447Z fatal: couldn't find remote ref refs/pull/53328/merge
2026-03-09T13:23:37.1319971Z ##[warning]Git fetch failed with exit code 128, back off 2.617 seconds before retry.
2026-03-09T13:23:39.7178531Z ##[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/53328/merge:refs/remotes/pull/53328/merge
2026-03-09T13:23:40.2009005Z fatal: couldn't find remote ref refs/pull/53328/merge
2026-03-09T13:23:40.2350454Z ##[error]Git fetch failed with exit code: 128
2026-03-09T13:23:40.2415651Z ##[section]Finishing: Checkout dotnet/sdk@refs/pull/53328/merge to s