Fix labels for Rust binaries to use those under @io_bazel_rules_rust. (#6)
Fix labels for Rust binaries to use those under @io_bazel_rules_rust. (#6)

Since the Rust rules have been deleted from @bazel_tools, we should use the
labels for the Rust binaries under this workspace instead.
bazelbuild/rules_rust,bazelbuild/rules_rust,bazelbuild/rules_rust,bazelbuild/rules_rust,bazelbuild/rules_rust