2026-02-12T13:08:21.6958326Z ##[section]Starting: Checkout dotnet/runtime@refs/pull/124310/merge to s
2026-02-12T13:08:21.7049512Z ==============================================================================
2026-02-12T13:08:21.7050259Z Task         : Get sources
2026-02-12T13:08:21.7050500Z Description  : Get sources from a repository. Supports Git, TfsVC, and SVN repositories.
2026-02-12T13:08:21.7050603Z Version      : 1.0.0
2026-02-12T13:08:21.7050777Z Author       : Microsoft
2026-02-12T13:08:21.7051004Z Help         : [More Information](https://go.microsoft.com/fwlink/?LinkId=798199)
2026-02-12T13:08:21.7051102Z ==============================================================================
2026-02-12T13:08:22.8636306Z Syncing repository: dotnet/runtime (GitHub)
2026-02-12T13:08:22.8641437Z ##[command]git version
2026-02-12T13:08:22.8646263Z git version 2.52.0
2026-02-12T13:08:22.8646829Z ##[command]git lfs version
2026-02-12T13:08:23.2810611Z git-lfs/3.0.2 (GitHub; linux amd64; go 1.18.1)
2026-02-12T13:08:23.2954653Z ##[command]git init "/mnt/vss/_work/1/s"
2026-02-12T13:08:23.3736638Z hint: Using 'master' as the name for the initial branch. This default branch name
2026-02-12T13:08:23.3737349Z hint: will change to "main" in Git 3.0. To configure the initial branch name
2026-02-12T13:08:23.3737754Z hint: to use in all of your new repositories, which will suppress this warning,
2026-02-12T13:08:23.3737993Z hint: call:
2026-02-12T13:08:23.3738172Z hint:
2026-02-12T13:08:23.3738400Z hint: 	git config --global init.defaultBranch <name>
2026-02-12T13:08:23.3738610Z hint:
2026-02-12T13:08:23.3739052Z hint: Names commonly chosen instead of 'master' are 'main', 'trunk' and
2026-02-12T13:08:23.3739328Z hint: 'development'. The just-created branch can be renamed via this command:
2026-02-12T13:08:23.3739509Z hint:
2026-02-12T13:08:23.3739674Z hint: 	git branch -m <name>
2026-02-12T13:08:23.3739819Z hint:
2026-02-12T13:08:23.3740002Z hint: Disable this message with "git config set advice.defaultBranchName false"
2026-02-12T13:08:23.3812323Z Initialized empty Git repository in /mnt/vss/_work/1/s/.git/
2026-02-12T13:08:23.3876627Z ##[command]git remote add origin https://github.com/dotnet/runtime
2026-02-12T13:08:23.3996125Z ##[command]git sparse-checkout disable
2026-02-12T13:08:23.4128355Z ##[command]git config gc.auto 0
2026-02-12T13:08:23.4172088Z ##[command]git config core.longpaths true
2026-02-12T13:08:23.4201749Z ##[command]git config --get-all http.https://github.com/dotnet/runtime.extraheader
2026-02-12T13:08:23.4241214Z ##[command]git config --get-all http.extraheader
2026-02-12T13:08:23.4276074Z ##[command]git config --get-regexp .*extraheader
2026-02-12T13:08:23.4305743Z ##[command]git config --get-all http.proxy
2026-02-12T13:08:23.4342319Z ##[command]git config http.version HTTP/1.1
2026-02-12T13:08:23.4386095Z ##[command]git config --get-all remote.origin.promisor
2026-02-12T13:08:23.4421131Z ##[command]git config --get-all remote.origin.partialclonefilter
2026-02-12T13:08:23.4586044Z ##[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/124310/merge:refs/remotes/pull/124310/merge
2026-02-12T13:08:24.5443013Z fatal: couldn't find remote ref refs/pull/124310/merge
2026-02-12T13:08:25.5550036Z ##[warning]Git fetch failed with exit code 128, back off 9.958 seconds before retry.
2026-02-12T13:08:34.5092602Z ##[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/124310/merge:refs/remotes/pull/124310/merge
2026-02-12T13:08:34.8982459Z fatal: couldn't find remote ref refs/pull/124310/merge
2026-02-12T13:08:35.8072165Z ##[warning]Git fetch failed with exit code 128, back off 8.613 seconds before retry.
2026-02-12T13:08:43.5150320Z ##[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/124310/merge:refs/remotes/pull/124310/merge
2026-02-12T13:08:43.9106269Z fatal: couldn't find remote ref refs/pull/124310/merge
2026-02-12T13:08:44.6601158Z ##[error]Git fetch failed with exit code: 128
2026-02-12T13:08:44.6640555Z ##[section]Finishing: Checkout dotnet/runtime@refs/pull/124310/merge to s