2026-02-12T09:09:58.5795503Z ##[section]Starting: Checkout dotnet/runtime@refs/pull/124312/merge to s
2026-02-12T09:09:58.5884136Z ==============================================================================
2026-02-12T09:09:58.5885150Z Task         : Get sources
2026-02-12T09:09:58.5885449Z Description  : Get sources from a repository. Supports Git, TfsVC, and SVN repositories.
2026-02-12T09:09:58.5885580Z Version      : 1.0.0
2026-02-12T09:09:58.5885758Z Author       : Microsoft
2026-02-12T09:09:58.5886015Z Help         : [More Information](https://go.microsoft.com/fwlink/?LinkId=798199)
2026-02-12T09:09:58.5886123Z ==============================================================================
2026-02-12T09:09:59.6445010Z Syncing repository: dotnet/runtime (GitHub)
2026-02-12T09:09:59.6450278Z ##[command]git version
2026-02-12T09:09:59.6455440Z git version 2.52.0
2026-02-12T09:09:59.6456044Z ##[command]git lfs version
2026-02-12T09:10:00.8293495Z git-lfs/3.0.2 (GitHub; linux amd64; go 1.18.1)
2026-02-12T09:10:00.8441164Z ##[command]git init "/mnt/vss/_work/1/s"
2026-02-12T09:10:01.0053957Z hint: Using 'master' as the name for the initial branch. This default branch name
2026-02-12T09:10:01.0054690Z hint: will change to "main" in Git 3.0. To configure the initial branch name
2026-02-12T09:10:01.0055123Z hint: to use in all of your new repositories, which will suppress this warning,
2026-02-12T09:10:01.0055447Z hint: call:
2026-02-12T09:10:01.0055701Z hint:
2026-02-12T09:10:01.0056043Z hint: 	git config --global init.defaultBranch <name>
2026-02-12T09:10:01.0056335Z hint:
2026-02-12T09:10:01.0056642Z hint: Names commonly chosen instead of 'master' are 'main', 'trunk' and
2026-02-12T09:10:01.0057202Z hint: 'development'. The just-created branch can be renamed via this command:
2026-02-12T09:10:01.0057530Z hint:
2026-02-12T09:10:01.0057723Z hint: 	git branch -m <name>
2026-02-12T09:10:01.0057890Z hint:
2026-02-12T09:10:01.0058087Z hint: Disable this message with "git config set advice.defaultBranchName false"
2026-02-12T09:10:01.0188469Z Initialized empty Git repository in /mnt/vss/_work/1/s/.git/
2026-02-12T09:10:01.0206463Z ##[command]git remote add origin https://github.com/dotnet/runtime
2026-02-12T09:10:01.0413479Z ##[command]git sparse-checkout disable
2026-02-12T09:10:01.0616605Z ##[command]git config gc.auto 0
2026-02-12T09:10:01.0666462Z ##[command]git config core.longpaths true
2026-02-12T09:10:01.0701542Z ##[command]git config --get-all http.https://github.com/dotnet/runtime.extraheader
2026-02-12T09:10:01.0740755Z ##[command]git config --get-all http.extraheader
2026-02-12T09:10:01.0776990Z ##[command]git config --get-regexp .*extraheader
2026-02-12T09:10:01.0806611Z ##[command]git config --get-all http.proxy
2026-02-12T09:10:01.0837315Z ##[command]git config http.version HTTP/1.1
2026-02-12T09:10:01.0886122Z ##[command]git config --get-all remote.origin.promisor
2026-02-12T09:10:01.0918030Z ##[command]git config --get-all remote.origin.partialclonefilter
2026-02-12T09:10:01.0969379Z ##[command]git --config-env=http.extraheader=env_var_http.extraheader fetch --force --no-tags --prune --prune-tags --progress --no-recurse-submodules origin   +refs/heads/*:refs/remotes/origin/* +refs/pull/124312/merge:refs/remotes/pull/124312/merge
2026-02-12T09:10:01.8071819Z fatal: couldn't find remote ref refs/pull/124312/merge
2026-02-12T09:10:02.7212238Z ##[warning]Git fetch failed with exit code 128, back off 9.412 seconds before retry.
2026-02-12T09:10:11.2271438Z ##[command]git --config-env=http.extraheader=env_var_http.extraheader fetch --force --no-tags --prune --prune-tags --progress --no-recurse-submodules origin   +refs/heads/*:refs/remotes/origin/* +refs/pull/124312/merge:refs/remotes/pull/124312/merge
2026-02-12T09:10:11.6970270Z fatal: couldn't find remote ref refs/pull/124312/merge
2026-02-12T09:10:12.3803119Z ##[warning]Git fetch failed with exit code 128, back off 5.293 seconds before retry.
2026-02-12T09:10:16.9944803Z ##[command]git --config-env=http.extraheader=env_var_http.extraheader fetch --force --no-tags --prune --prune-tags --progress --no-recurse-submodules origin   +refs/heads/*:refs/remotes/origin/* +refs/pull/124312/merge:refs/remotes/pull/124312/merge
2026-02-12T09:10:17.4549874Z fatal: couldn't find remote ref refs/pull/124312/merge
2026-02-12T09:10:18.0939386Z ##[error]Git fetch failed with exit code: 128
2026-02-12T09:10:18.0982914Z ##[section]Finishing: Checkout dotnet/runtime@refs/pull/124312/merge to s