diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..f4d100d
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,4 @@
+/results_*/
+/*.src.rpm
+
+/derive_arbitrary-0.4.7.crate
diff --git a/README.md b/README.md
deleted file mode 100644
index 1ee1147..0000000
--- a/README.md
+++ /dev/null
@@ -1,3 +0,0 @@
-# rust-derive_arbitrary0.4
-
-The rust-derive_arbitrary0.4 package
diff --git a/rust-derive_arbitrary0.4.spec b/rust-derive_arbitrary0.4.spec
new file mode 100644
index 0000000..045e005
--- /dev/null
+++ b/rust-derive_arbitrary0.4.spec
@@ -0,0 +1,75 @@
+# Generated by rust2rpm 17
+%bcond_without check
+%global debug_package %{nil}
+
+%global crate derive_arbitrary
+
+Name:           rust-%{crate}0.4
+Version:        0.4.7
+Release:        1%{?dist}
+Summary:        Derives arbitrary traits
+
+# Upstream license specification: MIT/Apache-2.0
+License:        MIT or ASL 2.0
+URL:            https://crates.io/crates/derive_arbitrary
+Source:         %{crates_source}
+
+ExclusiveArch:  %{rust_arches}
+%if %{__cargo_skip_build}
+BuildArch:      noarch
+%endif
+
+BuildRequires:  rust-packaging
+
+%global _description %{expand:
+Derives arbitrary traits.}
+
+%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-MIT LICENSE-APACHE
+%doc README.md
+%{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
+* Wed Apr 21 2021 Fabio Valentini <decathorpe@gmail.com> - 0.4.7-1
+- Initial compat package for derive_arbitrary 0.4.
diff --git a/sources b/sources
new file mode 100644
index 0000000..0924200
--- /dev/null
+++ b/sources
@@ -0,0 +1 @@
+SHA512 (derive_arbitrary-0.4.7.crate) = 92ada94622dcc4e4870f3068dd0c7f5d87f76c5c6f28d95db74a0c0a23b587353da0956c6539d7f57df125a73dc1b2af44143ae1213567fc124766717031d93a