Tie the rustc binary version into all rustc invocations

Bug: 1411471
Change-Id: Id0eece8b0cb354c5d8447a697f8be6b6235f0d9b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4204884
Reviewed-by: Hans Wennborg <[email protected]>
Reviewed-by: Collin Baker <[email protected]>
Commit-Queue: Collin Baker <[email protected]>
Cr-Commit-Position: refs/heads/main@{#1099386}
NOKEYCHECK=True
GitOrigin-RevId: 4e1856f768234aad348e2209077c92f525a2288a

Author: danakj

update_rust.py

@@ -37,6 +37,9 @@
 # The revision specified below should typically be the same as the
 # `crubit_revision` specified in the //DEPS file.  More details and roll
 # instructions can be found in tools/rust/README.md.
+#
+# TODO(danakj): This should be included in --print-rust-revision when we want
+# code to depend on using crubit rs_to_cc_bindings.
 CRUBIT_REVISION = 'f5cbdf4b54b0e6b9f63a4464a2c901c82e0f0209'
 CRUBIT_SUB_REVISION = 1