diff --git a/.gitignore b/.gitignore
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index 0000000..525c4ff
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+/num-traits-0.1.40.crate
diff --git a/rust-num-traits.spec b/rust-num-traits.spec
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index 0000000..add7ec4
--- /dev/null
+++ b/rust-num-traits.spec
@@ -0,0 +1,66 @@
+# Generated by rust2rpm
+%bcond_without check
+%global debug_package %{nil}
+
+%global crate num-traits
+
+Name:           rust-%{crate}
+Version:        0.1.40
+Release:        1%{?dist}
+Summary:        Numeric traits for generic mathematics
+
+License:        MIT or ASL 2.0
+URL:            https://crates.io/crates/num-traits
+Source0:        https://crates.io/api/v1/crates/%{crate}/%{version}/download#/%{crate}-%{version}.crate
+
+ExclusiveArch:  %{rust_arches}
+
+BuildRequires:  rust-packaging
+
+%description
+%{summary}.
+
+%package        devel
+Summary:        %{summary}
+BuildArch:      noarch
+
+%description    devel
+Numeric traits for generic mathematics.
+
+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 LICENSE-MIT LICENSE-APACHE
+%{cargo_registry}/%{crate}-%{version}/
+
+%changelog
+* Sat Nov 04 2017 Igor Gnatenko <ignatenkobrain@fedoraproject.org> - 0.1.40-1
+- Update to 0.1.40
+
+* Wed Jun 14 2017 Igor Gnatenko <ignatenkobrain@fedoraproject.org> - 0.1.39-1
+- Update to 0.1.39
+
+* Wed Jun 14 2017 Igor Gnatenko <ignatenkobrain@fedoraproject.org> - 0.1.37-2
+- Port to use rust-packaging
+
+* Mon Feb 27 2017 Igor Gnatenko <ignatenkobrain@fedoraproject.org> - 0.1.37-1
+- Update to 0.1.37
+
+* Sun Feb 26 2017 Igor Gnatenko <ignatenkobrain@fedoraproject.org> - 0.1.36-1
+- Initial package
diff --git a/sources b/sources
new file mode 100644
index 0000000..35d289d
--- /dev/null
+++ b/sources
@@ -0,0 +1 @@
+SHA512 (num-traits-0.1.40.crate) = 3675fd14064b877e65bb3f9479e5d1486a932901e2ddadee54b4913577067ad9d1bc9544663cfd13116405fde9059032824d6228b3b987b91b3edf80c8e669b6