diff --git a/.gitignore b/.gitignore
index af20227..8751817 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,3 +5,6 @@
 /spin-0.4.10.crate
 /spin-0.5.0.crate
 /spin-0.5.2.crate
+/spin-0.9.2.crate
+/spin-0.9.3.crate
+/spin-0.9.4.crate
diff --git a/.rust2rpm.conf b/.rust2rpm.conf
new file mode 100644
index 0000000..95bbfe1
--- /dev/null
+++ b/.rust2rpm.conf
@@ -0,0 +1,4 @@
+[DEFAULT]
+unwanted-features =
+  portable-atomic
+  portable_atomic
diff --git a/rust-spin.spec b/rust-spin.spec
index d3e0e60..f9a8cf6 100644
--- a/rust-spin.spec
+++ b/rust-spin.spec
@@ -1,13 +1,13 @@
-# Generated by rust2rpm 19
+# Generated by rust2rpm 21
 %bcond_without check
 %global debug_package %{nil}
 
 %global crate spin
 
 Name:           rust-%{crate}
-Version:        0.5.2
+Version:        0.9.4
 Release:        %autorelease
-Summary:        Synchronization primitives based on spinning
+Summary:        Spin-based synchronization primitives
 
 # Upstream license specification: MIT
 License:        MIT
@@ -15,15 +15,11 @@ URL:            https://crates.io/crates/spin
 Source:         %{crates_source}
 
 ExclusiveArch:  %{rust_arches}
-%if %{__cargo_skip_build}
-BuildArch:      noarch
-%endif
 
-BuildRequires:  rust-packaging
+BuildRequires:  rust-packaging >= 21
 
 %global _description %{expand:
-Synchronization primitives based on spinning. They may contain data, are usable
-without `std`, and static initializers are available.}
+Spin-based synchronization primitives.}
 
 %description %{_description}
 
@@ -34,12 +30,13 @@ BuildArch:      noarch
 %description    devel %{_description}
 
 This package contains library source intended for building other packages which
-use "%{crate}" crate.
+use the "%{crate}" crate.
 
 %files          devel
-%license LICENSE
-%doc README.md
-%{cargo_registry}/%{crate}-%{version_no_tilde}/
+%license %{crate_instdir}/LICENSE
+%doc %{crate_instdir}/CHANGELOG.md
+%doc %{crate_instdir}/README.md
+%{crate_instdir}/
 
 %package     -n %{name}+default-devel
 Summary:        %{summary}
@@ -48,10 +45,142 @@ BuildArch:      noarch
 %description -n %{name}+default-devel %{_description}
 
 This package contains library source intended for building other packages which
-use "the default" feature of the "%{crate}" crate.
+use the "default" feature of the "%{crate}" crate.
 
 %files       -n %{name}+default-devel
-%ghost %{cargo_registry}/%{crate}-%{version_no_tilde}/Cargo.toml
+%ghost %{crate_instdir}/Cargo.toml
+
+%package     -n %{name}+barrier-devel
+Summary:        %{summary}
+BuildArch:      noarch
+
+%description -n %{name}+barrier-devel %{_description}
+
+This package contains library source intended for building other packages which
+use the "barrier" feature of the "%{crate}" crate.
+
+%files       -n %{name}+barrier-devel
+%ghost %{crate_instdir}/Cargo.toml
+
+%package     -n %{name}+lazy-devel
+Summary:        %{summary}
+BuildArch:      noarch
+
+%description -n %{name}+lazy-devel %{_description}
+
+This package contains library source intended for building other packages which
+use the "lazy" feature of the "%{crate}" crate.
+
+%files       -n %{name}+lazy-devel
+%ghost %{crate_instdir}/Cargo.toml
+
+%package     -n %{name}+lock_api-devel
+Summary:        %{summary}
+BuildArch:      noarch
+
+%description -n %{name}+lock_api-devel %{_description}
+
+This package contains library source intended for building other packages which
+use the "lock_api" feature of the "%{crate}" crate.
+
+%files       -n %{name}+lock_api-devel
+%ghost %{crate_instdir}/Cargo.toml
+
+%package     -n %{name}+lock_api_crate-devel
+Summary:        %{summary}
+BuildArch:      noarch
+
+%description -n %{name}+lock_api_crate-devel %{_description}
+
+This package contains library source intended for building other packages which
+use the "lock_api_crate" feature of the "%{crate}" crate.
+
+%files       -n %{name}+lock_api_crate-devel
+%ghost %{crate_instdir}/Cargo.toml
+
+%package     -n %{name}+mutex-devel
+Summary:        %{summary}
+BuildArch:      noarch
+
+%description -n %{name}+mutex-devel %{_description}
+
+This package contains library source intended for building other packages which
+use the "mutex" feature of the "%{crate}" crate.
+
+%files       -n %{name}+mutex-devel
+%ghost %{crate_instdir}/Cargo.toml
+
+%package     -n %{name}+once-devel
+Summary:        %{summary}
+BuildArch:      noarch
+
+%description -n %{name}+once-devel %{_description}
+
+This package contains library source intended for building other packages which
+use the "once" feature of the "%{crate}" crate.
+
+%files       -n %{name}+once-devel
+%ghost %{crate_instdir}/Cargo.toml
+
+%package     -n %{name}+rwlock-devel
+Summary:        %{summary}
+BuildArch:      noarch
+
+%description -n %{name}+rwlock-devel %{_description}
+
+This package contains library source intended for building other packages which
+use the "rwlock" feature of the "%{crate}" crate.
+
+%files       -n %{name}+rwlock-devel
+%ghost %{crate_instdir}/Cargo.toml
+
+%package     -n %{name}+spin_mutex-devel
+Summary:        %{summary}
+BuildArch:      noarch
+
+%description -n %{name}+spin_mutex-devel %{_description}
+
+This package contains library source intended for building other packages which
+use the "spin_mutex" feature of the "%{crate}" crate.
+
+%files       -n %{name}+spin_mutex-devel
+%ghost %{crate_instdir}/Cargo.toml
+
+%package     -n %{name}+std-devel
+Summary:        %{summary}
+BuildArch:      noarch
+
+%description -n %{name}+std-devel %{_description}
+
+This package contains library source intended for building other packages which
+use the "std" feature of the "%{crate}" crate.
+
+%files       -n %{name}+std-devel
+%ghost %{crate_instdir}/Cargo.toml
+
+%package     -n %{name}+ticket_mutex-devel
+Summary:        %{summary}
+BuildArch:      noarch
+
+%description -n %{name}+ticket_mutex-devel %{_description}
+
+This package contains library source intended for building other packages which
+use the "ticket_mutex" feature of the "%{crate}" crate.
+
+%files       -n %{name}+ticket_mutex-devel
+%ghost %{crate_instdir}/Cargo.toml
+
+%package     -n %{name}+use_ticket_mutex-devel
+Summary:        %{summary}
+BuildArch:      noarch
+
+%description -n %{name}+use_ticket_mutex-devel %{_description}
+
+This package contains library source intended for building other packages which
+use the "use_ticket_mutex" feature of the "%{crate}" crate.
+
+%files       -n %{name}+use_ticket_mutex-devel
+%ghost %{crate_instdir}/Cargo.toml
 
 %prep
 %autosetup -n %{crate}-%{version_no_tilde} -p1
diff --git a/sources b/sources
index 19bf8c0..7105ec2 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (spin-0.5.2.crate) = fc57f7906da2b7a298c5f89215e881e8827b4d9f934dbf138338e0ee30122d8459483be566268fa374b41d63d8dbf65d42e0b322535ba35c827d7edb2176f267
+SHA512 (spin-0.9.4.crate) = 156b1c471292e8cb874b59129454b56b5e84a0f10b5d064433e0abfc3384c1a594b12b095acd26da350d7f81e6849da9c07c9a506b4aa0ac4808ce3f70b5511c