Update to version 0.20.0; Fixes RHBZ#2259683

.gitignore

@@ -4,3 +4,4 @@
 /derive_builder_core-0.10.2.crate
 /derive_builder_core-0.11.2.crate
 /derive_builder_core-0.12.0.crate
+/derive_builder_core-0.20.0.crate

rust-derive_builder_core.spec

@@ -1,20 +1,19 @@
-# Generated by rust2rpm 24
+# Generated by rust2rpm 26
 %bcond_without check
 %global debug_package %{nil}
 
 %global crate derive_builder_core
 
 Name:           rust-derive_builder_core
-Version:        0.12.0
+Version:        0.20.0
 Release:        %autorelease
 Summary:        Internal helper library for the derive_builder crate
 
-# Upstream license specification: MIT/Apache-2.0
 License:        MIT OR Apache-2.0
 URL:            https://crates.io/crates/derive_builder_core
 Source:         %{crates_source}
 
-BuildRequires:  rust-packaging >= 21
+BuildRequires:  cargo-rpm-macros >= 24
 
 %global _description %{expand:
 Internal helper library for the derive_builder crate.}
@@ -49,8 +48,32 @@ use the "default" feature of the "%{crate}" crate.
 %files       -n %{name}+default-devel
 %ghost %{crate_instdir}/Cargo.toml
 
+%package     -n %{name}+alloc-devel
+Summary:        %{summary}
+BuildArch:      noarch
+
+%description -n %{name}+alloc-devel %{_description}
+
+This package contains library source intended for building other packages which
+use the "alloc" feature of the "%{crate}" crate.
+
+%files       -n %{name}+alloc-devel
+%ghost %{crate_instdir}/Cargo.toml
+
+%package     -n %{name}+lib_has_std-devel
+Summary:        %{summary}
+BuildArch:      noarch
+
+%description -n %{name}+lib_has_std-devel %{_description}
+
+This package contains library source intended for building other packages which
+use the "lib_has_std" feature of the "%{crate}" crate.
+
+%files       -n %{name}+lib_has_std-devel
+%ghost %{crate_instdir}/Cargo.toml
+
 %prep
-%autosetup -n %{crate}-%{version_no_tilde} -p1
+%autosetup -n %{crate}-%{version} -p1
 %cargo_prep
 
 %generate_buildrequires

rust2rpm.conf

@@ -1,3 +0,0 @@
-[DEFAULT]
-unwanted-features =
-  clippy

rust2rpm.toml

@@ -0,0 +1,3 @@
+[features]
+hide = ["clippy"]
+

sources

@@ -1 +1 @@
-SHA512 (derive_builder_core-0.12.0.crate) = f2e3cd5afd603273a1785fcef32b8cafbc89c422bc7754c46a9dade42f7351e3d6fcd00a5717e2617618f1bf71d5ce94abe043b19b4b6092d484955f1578d7fe
+SHA512 (derive_builder_core-0.20.0.crate) = b4564364bea1c98563c7ec8b0bd99f260cc2b382a3a8f1156d401c57383b815a4a54e3e5f2446ccb2665eae600d6528faddf31d0f65678a3e5274073c2334073