Roll tools/rust/ e721a72ad..bcaf16e55 (9 commits)

https://chromium.googlesource.com/chromium/src/tools/rust/+log/e721a72ada16..bcaf16e552b1

Created with:
  roll-dep tools/rust

Change-Id: I23f4e566f81906a5b8576b48aa6fc95d6c65072a
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/116133
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Alan Screen <awscreen@chromium.org>
diff --git a/DEPS b/DEPS
index ba514ce..f40325c 100644
--- a/DEPS
+++ b/DEPS
@@ -186,7 +186,7 @@
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling clang
   # and whatever else without interference from each other.
-  'rust_revision': 'e721a72ada161eee9693d6d96fcbdb6155c7a8b1',
+  'rust_revision': 'bcaf16e552b19d4f5d67636d8373c172a2cf8a1a',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling skia
   # and whatever else without interference from each other.