Architecture specific change in rpms/rust-thread-scoped.git

The package rpms/rust-thread-scoped.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-thread-scoped.git/commit/?id=95....

Change:
+ExclusiveArch:  %{rust_arches}

Thanks.

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

commit 9568538de443f1b6cbb1f5771f7ba214981c9445
Author: Igor Gnatenko 
Date:   Fri Jul 27 00:28:50 2018 +0200

initial import

Signed-off-by: Igor Gnatenko

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..6496c4b
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+/thread-scoped-1.0.2.crate
diff --git a/rust-thread-scoped.spec b/rust-thread-scoped.spec
new file mode 100644
index 0000000..e78b8dc
--- /dev/null
+++ b/rust-thread-scoped.spec
@@ -0,0 +1,56 @@
+# Generated by rust2rpm
+%bcond_without check
+%global debug_package %{nil}
+
+%global crate thread-scoped
+
+Name:           rust-%{crate}
+Version:        1.0.2
+Release:        1%{?dist}
+Summary:        Unsafe and deprecated std::thread::scoped
+
+# https://github.com/arcnmx/thread-scoped-rs/issues/8
+License:        MIT or ASL 2.0
+URL:            https://crates.io/crates/thread-scoped
+Source0:        https://crates.io/api/v1/crates/%%7Bcrate%7D/%%7Bversion%7D/download#/%%7Bcr...
+
+ExclusiveArch:  %{rust_arches}
+
+BuildRequires:  rust-packaging
+
+%description
+%{summary}.
+
+%package        devel
+Summary:        %{summary}
+BuildArch:      noarch
+
+%description    devel
+Unsafe and deprecated std::thread::scoped.
+
+This package contains library source intended for building other packages
+which use %{crate} from crates.io.
+
+%prep
+%autosetup -n %{crate}-%{version} -p1
+%cargo_prep
+
+%build
+%cargo_build
+
+%install
+%cargo_install
+
+%if %{with check}
+%check
+%cargo_test
+%endif
+
+%files          devel
+%license COPYING
+%doc README.md
+%{cargo_registry}/%{crate}-%{version}/
+
+%changelog
+* Thu Jul 26 2018 Igor Gnatenko  - 1.0.2-1
+- Initial package
diff --git a/sources b/sources
new file mode 100644
index 0000000..e816f6a
--- /dev/null
+++ b/sources
@@ -0,0 +1 @@
+SHA512 (thread-scoped-1.0.2.crate) = bc478838e9192b81e66f45024a6f80db360fc32cb508a9d6b44f77e2964789f097635fba06d13cf4353f138d38494013bfae9b0b9f51045958587bb56ec71172