# What: delete .git worktree pointer from crate git checkouts.
# Why: the .git file contains an absolute path to the bazel output base,
#   which differs across machines. This pollutes compile_data and causes
#   action cache misses when builds run on different CI runners.

diff --git a/rs/private/crate_git_repository.bzl b/rs/private/crate_git_repository.bzl
index 1234567..abcdefg 100644
--- a/rs/private/crate_git_repository.bzl
+++ b/rs/private/crate_git_repository.bzl
@@ -35,6 +35,11 @@ def _crate_git_repository_implementation(rctx):
         "HEAD"
     ])
     if result.return_code != 0:
         fail(result.stderr)

+    # Remove .git worktree pointer file. It contains an absolute path to
+    # the bazel output base which is machine-specific and non-deterministic.
+    # Leaving it in pollutes compile_data globs and causes AC misses.
+    rctx.delete(root.get_child(".git"))
+
     if strip_prefix:
         dest_link = dest_dir.get_child(strip_prefix)
         if not dest_link.exists: