INFO:2026-04-01T17:42:50Z:root:pulling...
From github.com:llvm/llvm-project
 * branch                      main       -> FETCH_HEAD
   24b6ee90c1ee..fbf484009c78  main       -> origin/main
Switched to branch 'main'
Your branch is behind 'origin/main' by 1 commit, and can be fast-forwarded.
  (use "git pull" to update your local branch)
HEAD is now at fbf484009c78 [mlir][sparse] add GPU num threads to sparsifier options (#189078)
INFO:2026-04-01T17:42:53Z:root:syncing...
Deleted branch merge (was 24b6ee90c1ee).
Switched to a new branch 'merge'
branch 'merge' set up to track 'origin/main'.
[gn build] Port 0cecacd971a5 -- https://github.com/llvm/llvm-project/commit/0cecacd971a5
Traceback (most recent call last):
  File "/usr/local/google/home/thakis/src/llvm-project/llvm/utils/gn/build/sync_source_lists_from_cmake.py", line 187, in <module>
    main()
    ~~~~^^
  File "/usr/local/google/home/thakis/src/llvm-project/llvm/utils/gn/build/sync_source_lists_from_cmake.py", line 180, in main
    src = sync_source_lists(len(sys.argv) > 1 and sys.argv[1] == "--write")
  File "/usr/local/google/home/thakis/src/llvm-project/llvm/utils/gn/build/sync_source_lists_from_cmake.py", line 139, in sync_source_lists
    patch_gn_file(gn_file, add, remove)
    ~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/google/home/thakis/src/llvm-project/llvm/utils/gn/build/sync_source_lists_from_cmake.py", line 35, in patch_gn_file
    raise ValueError(gn_file + ": Multiple source lists")
ValueError: llvm/utils/gn/secondary/compiler-rt/lib/builtins/BUILD.gn: Multiple source lists
Command '['/usr/bin/python3', 'llvm/utils/gn/build/sync_source_lists_from_cmake.py', '--write']' returned non-zero exit status 1.