Architecture specific change in rpms/rust-dbus-tree.git

The package rpms/rust-dbus-tree.git has added or updated architecture specific content in its
spec file (ExclusiveArch/ExcludeArch or %ifarch/%ifnarch) in commit(s):
https://src.fedoraproject.org/cgit/rpms/rust-dbus-tree.git/commit/?id=f0bb64....

Change:
+ExclusiveArch:  %{rust_arches}

Thanks.

Full change:
============

commit f0bb64c56c23d4f23b6affd0411bff1fda736797
Author: John Baublitz 
Date:   Thu Apr 8 09:04:37 2021 -0400

Initial package version (#1944879)

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..22cd455
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+/dbus-tree-0.9.1.crate
diff --git a/rust-dbus-tree.spec b/rust-dbus-tree.spec
new file mode 100644
index 0000000..b3c08e8
--- /dev/null
+++ b/rust-dbus-tree.spec
@@ -0,0 +1,74 @@
+# Generated by rust2rpm 13
+%bcond_without check
+%global debug_package %{nil}
+
+%global crate dbus-tree
+
+Name:           rust-%{crate}
+Version:        0.9.1
+Release:        1%{?dist}
+Summary:        Framework for writing D-Bus method handlers (legacy)
+
+# Upstream license specification: Apache-2.0/MIT
+License:        ASL 2.0 or MIT
+URL:            https://crates.io/crates/dbus-tree
+Source:         %{crates_source}
+
+ExclusiveArch:  %{rust_arches}
+%if %{__cargo_skip_build}
+BuildArch:      noarch
+%endif
+
+BuildRequires:  rust-packaging
+
+%global _description %{expand:
+Framework for writing D-Bus method handlers (legacy).}
+
+%description %{_description}
+
+%package        devel
+Summary:        %{summary}
+BuildArch:      noarch
+
+%description    devel %{_description}
+
+This package contains library source intended for building other packages
+which use "%{crate}" crate.
+
+%files          devel
+%license LICENSE-APACHE LICENSE-MIT
+%{cargo_registry}/%{crate}-%{version_no_tilde}/
+
+%package     -n %{name}+default-devel
+Summary:        %{summary}
+BuildArch:      noarch
+
+%description -n %{name}+default-devel %{_description}
+
+This package contains library source intended for building other packages
+which use "default" feature of "%{crate}" crate.
+
+%files       -n %{name}+default-devel
+%ghost %{cargo_registry}/%{crate}-%{version_no_tilde}/Cargo.toml
+
+%prep
+%autosetup -n %{crate}-%{version_no_tilde} -p1
+%cargo_prep
+
+%generate_buildrequires
+%cargo_generate_buildrequires
+
+%build
+%cargo_build
+
+%install
+%cargo_install
+
+%if %{with check}
+%check
+%cargo_test
+%endif
+
+%changelog
+* Tue Mar 30 14:29:15 EDT 2021 John Baublitz  - 0.9.1-1
+- Initial package
diff --git a/sources b/sources
new file mode 100644
index 0000000..67a8ace
--- /dev/null
+++ b/sources
@@ -0,0 +1 @@
+SHA512 (dbus-tree-0.9.1.crate) = 1e5d9f4b8c9b4d2089dbc351c77d67b27fab9a0aaabb70089685518e2792802ba4d847c487e8876d4df244f7468d0c20c40b550ae39faa37e6013d973e77b0db