diff --git a/rust-arrayvec.spec b/rust-arrayvec.spec
index 0de7e58..a40f9a6 100644
--- a/rust-arrayvec.spec
+++ b/rust-arrayvec.spec
@@ -1,13 +1,12 @@
-# Generated by rust2rpm
-# * Tests are run in infrastructure
-%bcond_with check
+# Generated by rust2rpm 10
+%bcond_without check
 %global debug_package %{nil}
 
 %global crate arrayvec
 
 Name:           rust-%{crate}
 Version:        0.4.10
-Release:        3%{?dist}
+Release:        4%{?dist}
 Summary:        Vector with fixed capacity, backed by an array
 
 # Upstream license specification: MIT/Apache-2.0
@@ -16,18 +15,15 @@ URL:            https://crates.io/crates/arrayvec
 Source:         %{crates_source}
 
 ExclusiveArch:  %{rust_arches}
+%if %{__cargo_skip_build}
+BuildArch:      noarch
+%endif
 
 BuildRequires:  rust-packaging
-BuildRequires:  (crate(nodrop) >= 0.1.12 with crate(nodrop) < 0.2.0)
-%if %{with check}
-BuildRequires:  (crate(bencher/default) >= 0.1.4 with crate(bencher/default) < 0.2.0)
-BuildRequires:  (crate(matches/default) >= 0.1.0 with crate(matches/default) < 0.2.0)
-BuildRequires:  (crate(serde_test/default) >= 1.0.0 with crate(serde_test/default) < 2.0.0)
-%endif
 
-%global _description \
-A vector with fixed capacity, backed by an array (it can be stored on the stack\
-too). Implements fixed capacity ArrayVec and ArrayString.
+%global _description %{expand:
+Vector with fixed capacity, backed by an array (it can be stored on the stack
+too). Implements fixed capacity ArrayVec and ArrayString.}
 
 %description %{_description}
 
@@ -117,10 +113,25 @@ which use "std" feature of "%{crate}" crate.
 %files       -n %{name}+std-devel
 %ghost %{cargo_registry}/%{crate}-%{version}/Cargo.toml
 
+%package     -n %{name}+use_union-devel
+Summary:        %{summary}
+BuildArch:      noarch
+
+%description -n %{name}+use_union-devel %{_description}
+
+This package contains library source intended for building other packages
+which use "use_union" feature of "%{crate}" crate.
+
+%files       -n %{name}+use_union-devel
+%ghost %{cargo_registry}/%{crate}-%{version}/Cargo.toml
+
 %prep
 %autosetup -n %{crate}-%{version_no_tilde} -p1
 %cargo_prep
 
+%generate_buildrequires
+%cargo_generate_buildrequires
+
 %build
 %cargo_build
 
@@ -133,6 +144,9 @@ which use "std" feature of "%{crate}" crate.
 %endif
 
 %changelog
+* Thu Jun 20 11:38:19 CEST 2019 Igor Gnatenko <ignatenkobrain@fedoraproject.org> - 0.4.10-4
+- Regenerate
+
 * Sun Mar 10 2019 Igor Gnatenko <ignatenkobrain@fedoraproject.org> - 0.4.10-3
 - Do not pull optional dependencies