diff --git a/.gitignore b/.gitignore
index f4bc0df..0c88151 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 /trybuild-1.0.18.crate
+/trybuild-1.0.21.crate
diff --git a/rust-trybuild.spec b/rust-trybuild.spec
index 2a04e59..f0012c9 100644
--- a/rust-trybuild.spec
+++ b/rust-trybuild.spec
@@ -1,12 +1,12 @@
-# Generated by rust2rpm 12
+# Generated by rust2rpm 13
 %bcond_without check
 %global debug_package %{nil}
 
 %global crate trybuild
 
 Name:           rust-%{crate}
-Version:        1.0.18
-Release:        2%{?dist}
+Version:        1.0.21
+Release:        1%{?dist}
 Summary:        Test harness for ui tests of compiler diagnostics
 
 # Upstream license specification: MIT OR Apache-2.0
@@ -52,6 +52,30 @@ which use "default" feature of "%{crate}" crate.
 %files       -n %{name}+default-devel
 %ghost %{cargo_registry}/%{crate}-%{version_no_tilde}/Cargo.toml
 
+%package     -n %{name}+diff-devel
+Summary:        %{summary}
+BuildArch:      noarch
+
+%description -n %{name}+diff-devel %{_description}
+
+This package contains library source intended for building other packages
+which use "diff" feature of "%{crate}" crate.
+
+%files       -n %{name}+diff-devel
+%ghost %{cargo_registry}/%{crate}-%{version_no_tilde}/Cargo.toml
+
+%package     -n %{name}+dissimilar-devel
+Summary:        %{summary}
+BuildArch:      noarch
+
+%description -n %{name}+dissimilar-devel %{_description}
+
+This package contains library source intended for building other packages
+which use "dissimilar" feature of "%{crate}" crate.
+
+%files       -n %{name}+dissimilar-devel
+%ghost %{cargo_registry}/%{crate}-%{version_no_tilde}/Cargo.toml
+
 %prep
 %autosetup -n %{crate}-%{version_no_tilde} -p1
 %cargo_prep
@@ -71,6 +95,9 @@ which use "default" feature of "%{crate}" crate.
 %endif
 
 %changelog
+* Mon Feb 10 2020 Josh Stone <jistone@redhat.com> - 1.0.21-1
+- Update to 1.0.21
+
 * Thu Jan 30 2020 Fedora Release Engineering <releng@fedoraproject.org> - 1.0.18-2
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_32_Mass_Rebuild
 
diff --git a/sources b/sources
index adebc15..496e437 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (trybuild-1.0.18.crate) = ebdd92a73bd985dd5a125b0a74e821f8f8c2e02b1f2bef0bb3e48663e7e8541301c47e2eba85f25e1e9183351f0b437b62a89e2606f19e967d129f3077b39d1e
+SHA512 (trybuild-1.0.21.crate) = 9c7eb1abff1cbf5ec03491f0ec822feae316c09fb8c884d149df15a1d66667850cb5eeb6166697aaf82cb2587a28d6e54389b01a1d16dd0397cc097239313526